Finding the Fourth Proportional to 87,149.18, 130,711.39 and 27,977.20
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Solution
The fourth proportional to 87,149.18, 130,711.39 and 27,977.20 is: 41,961.83
Step by Step Solution
- Step 1: Write the proportion equation
87,149.18 : 130,711.39 = 27,977.20 : x - Step 2: Convert to fraction form
87,149.18/130,711.39 = 27,977.20/x - Step 3: Cross multiply
87,149.18x = 130,711.39 × 27,977.20 - Step 4: Simplify right side
87,149.18x = 3,656,938,700.31 - Step 5: Solve for x
x = 3,656,938,700.31/87,149.18 - Step 6: Final answer
x = 41,961.83
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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.