Finding the Fourth Proportional to 87,789.11, 131,687.42 and 34,492.63
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Solution
The fourth proportional to 87,789.11, 131,687.42 and 34,492.63 is: 51,740.42
Step by Step Solution
- Step 1: Write the proportion equation
87,789.11 : 131,687.42 = 34,492.63 : x - Step 2: Convert to fraction form
87,789.11/131,687.42 = 34,492.63/x - Step 3: Cross multiply
87,789.11x = 131,687.42 × 34,492.63 - Step 4: Simplify right side
87,789.11x = 4,542,245,453.71 - Step 5: Solve for x
x = 4,542,245,453.71/87,789.11 - Step 6: Final answer
x = 51,740.42
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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.