71.5 is what percent of 311 - 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 311 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 311, so we can write it down as 100%=311.
4. We know, that x% equals 71.5 of the output value, so we can write it down as x%=71.5.
5. Now we have two simple equations:
1) 100%=311
2) x%=71.5
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%=311/71.5
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 71.5 is what percent of 311

100%/x%=311/71.5
(100/x)*x=(311/71.5)*x       - we multiply both sides of the equation by x
100=4.3496503496504*x       - we divide both sides of the equation by (4.3496503496504) to get x
100/4.3496503496504=x
22.990353697749=x
x=22.990353697749

now we have:
71.5 is 22.990353697749% of 311