Finding the Fourth Proportional to 80,909.28, 121,344.47 and 41,446.08
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Solution
The fourth proportional to 80,909.28, 121,344.47 and 41,446.08 is: 62,159.15
Step by Step Solution
- Step 1: Write the proportion equation
80,909.28 : 121,344.47 = 41,446.08 : x - Step 2: Convert to fraction form
80,909.28/121,344.47 = 41,446.08/x - Step 3: Cross multiply
80,909.28x = 121,344.47 × 41,446.08 - Step 4: Simplify right side
80,909.28x = 5,029,251,797.22 - Step 5: Solve for x
x = 5,029,251,797.22/80,909.28 - Step 6: Final answer
x = 62,159.15
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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.