Finding the Fourth Proportional to 71,318.60, 106,862.70 and 44,976.20
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Solution
The fourth proportional to 71,318.60, 106,862.70 and 44,976.20 is: 67,391.65
Step by Step Solution
- Step 1: Write the proportion equation
71,318.60 : 106,862.70 = 44,976.20 : x - Step 2: Convert to fraction form
71,318.60/106,862.70 = 44,976.20/x - Step 3: Cross multiply
71,318.60x = 106,862.70 × 44,976.20 - Step 4: Simplify right side
71,318.60x = 4,806,278,167.74 - Step 5: Solve for x
x = 4,806,278,167.74/71,318.60 - Step 6: Final answer
x = 67,391.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.