Finding the Fourth Proportional to 91,063.68, 125,593.60 and 76,471.52
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Solution
The fourth proportional to 91,063.68, 125,593.60 and 76,471.52 is: 105,468.32
Step by Step Solution
- Step 1: Write the proportion equation
91,063.68 : 125,593.60 = 76,471.52 : x - Step 2: Convert to fraction form
91,063.68/125,593.60 = 76,471.52/x - Step 3: Cross multiply
91,063.68x = 125,593.60 × 76,471.52 - Step 4: Simplify right side
91,063.68x = 9,604,333,494.27 - Step 5: Solve for x
x = 9,604,333,494.27/91,063.68 - Step 6: Final answer
x = 105,468.32
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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.