Finding the Fourth Proportional to 91,451.72, 126,208.28 and 51,163.08
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Solution
The fourth proportional to 91,451.72, 126,208.28 and 51,163.08 is: 70,607.80
Step by Step Solution
- Step 1: Write the proportion equation
91,451.72 : 126,208.28 = 51,163.08 : x - Step 2: Convert to fraction form
91,451.72/126,208.28 = 51,163.08/x - Step 3: Cross multiply
91,451.72x = 126,208.28 × 51,163.08 - Step 4: Simplify right side
91,451.72x = 6,457,204,326.30 - Step 5: Solve for x
x = 6,457,204,326.30/91,451.72 - Step 6: Final answer
x = 70,607.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.