13.5 is what percent of 72.75 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 72.75 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 72.75, so we can write it down as 100%=72.75.
4. We know, that x% equals 13.5 of the output value, so we can write it down as x%=13.5.
5. Now we have two simple equations:
1) 100%=72.75
2) x%=13.5
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=72.75/13.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13.5 is what percent of 72.75

100%/x%=72.75/13.5
(100/x)*x=(72.75/13.5)*x       - we multiply both sides of the equation by x
100=5.3888888888889*x       - we divide both sides of the equation by (5.3888888888889) to get x
100/5.3888888888889=x
18.556701030928=x
x=18.556701030928

now we have:
13.5 is 18.556701030928% of 72.75