81.38 is what percent of 313 - 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 313 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 313, so we can write it down as 100%=313.
4. We know, that x% equals 81.38 of the output value, so we can write it down as x%=81.38.
5. Now we have two simple equations:
1) 100%=313
2) x%=81.38
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%=313/81.38
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 81.38 is what percent of 313

100%/x%=313/81.38
(100/x)*x=(313/81.38)*x       - we multiply both sides of the equation by x
100=3.8461538461538*x       - we divide both sides of the equation by (3.8461538461538) to get x
100/3.8461538461538=x
26=x
x=26

now we have:
81.38 is 26% of 313