Question 456069
First, you need to recognize that 77.419% = 0.77419.
Now the equation is:
{{{53/x = .77419}}}
Multiply both sides by x.
{{{53 = .77419 * x}}}
Divide both sides by .77419.
{{{53/.77419 = x}}}
So,
{{{x = 53/.77419}}}
Using a calculator
{{{x = 68.174305}}}
Check your work by substituting this value in the original setup.
Again, use a calculator.
{{{53/68.174305 = .77419}}}
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Answer: x = 68.174305
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Remember to do your calculations to more decimal digits than you need in your answer. That way you can control rounding effects.
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Done.