Finding the Fourth Proportional to 76,387.13, 114,583.79 and 36,385.55
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Solution
The fourth proportional to 76,387.13, 114,583.79 and 36,385.55 is: 54,579.80
Step by Step Solution
- Step 1: Write the proportion equation
76,387.13 : 114,583.79 = 36,385.55 : x - Step 2: Convert to fraction form
76,387.13/114,583.79 = 36,385.55/x - Step 3: Cross multiply
76,387.13x = 114,583.79 × 36,385.55 - Step 4: Simplify right side
76,387.13x = 4,169,193,738.28 - Step 5: Solve for x
x = 4,169,193,738.28/76,387.13 - Step 6: Final answer
x = 54,579.80
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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.