Finding the Fourth Proportional to 77,134.65, 106,446.60 and 45,304.08
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Solution
The fourth proportional to 77,134.65, 106,446.60 and 45,304.08 is: 62,520.09
Step by Step Solution
- Step 1: Write the proportion equation
77,134.65 : 106,446.60 = 45,304.08 : x - Step 2: Convert to fraction form
77,134.65/106,446.60 = 45,304.08/x - Step 3: Cross multiply
77,134.65x = 106,446.60 × 45,304.08 - Step 4: Simplify right side
77,134.65x = 4,822,465,282.13 - Step 5: Solve for x
x = 4,822,465,282.13/77,134.65 - Step 6: Final answer
x = 62,520.09
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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.