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Q: How can you use a proportion to solve a percent question?

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There is no "should" or "should not". The depends on the question that you are trying to answer.

use the rule: is / of = percent / 100reword the question in your head What is 16 percent of 90?(percent = 16) (of = 90) is is the unknown pick a variable -- xx / 90 = 16 / 100 now solve for xx = 14.4

Because you simply set it up in a proportion box, for example if you have the fraction 4/8 you put the 4 on top of the 8 and 100 next to the 8 because with percents you always use 100. then solve,

A simple tool to remember is: IS over OF equals percent over 100.If we put this into a proportion, we get:IS/OF = percent/100.Just put all percent problems into this format, and solve the proportion.Example: 12.5 IS what percent OF 75?Or,12.5 IS | what percent | OF 75?Just put these numbers into the proportion: (We will use x for the percent, as that is the unknown we are solving for)12.5/75 = x/100.Then solve by cross multiplying:75x = 1250.Then divide by 75:x = 1250/75,x = 16 2/3 %

To find a percent.

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http://www.mathgoodies.com/lessons/percent/proportions.html this website helped me ! =]

How do you use division to solve a multiplication equation?Answer this question…

Use a proportion: x/74 = 5.5/100 cross multiply 100x =74 * 5.5 100x = 407 Divide both sides by 100 x = 4.07

It might be easier to use the percent equation rather than the percent proportion when you are multiplying and dividing.

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