Finding the Fourth Proportional to 91,332.62, 125,957.12 and 76,069.84
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Solution
The fourth proportional to 91,332.62, 125,957.12 and 76,069.84 is: 104,908.17
Step by Step Solution
- Step 1: Write the proportion equation
91,332.62 : 125,957.12 = 76,069.84 : x - Step 2: Convert to fraction form
91,332.62/125,957.12 = 76,069.84/x - Step 3: Cross multiply
91,332.62x = 125,957.12 × 76,069.84 - Step 4: Simplify right side
91,332.62x = 9,581,537,965.26 - Step 5: Solve for x
x = 9,581,537,965.26/91,332.62 - Step 6: Final answer
x = 104,908.17
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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.