Home / 87,704.20-131,557.50-28,540.18

Finding the Fourth Proportional to 87,704.20, 131,557.50 and 28,540.18

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Solution

The fourth proportional to 87,704.20, 131,557.50 and 28,540.18 is: 42,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,704.20 : 131,557.50 = 28,540.18 : x
  2. Step 2: Convert to fraction form
    87,704.20/131,557.50 = 28,540.18/x
  3. Step 3: Cross multiply
    87,704.20x = 131,557.50 × 28,540.18
  4. Step 4: Simplify right side
    87,704.20x = 3,754,674,730.35
  5. Step 5: Solve for x
    x = 3,754,674,730.35/87,704.20
  6. Step 6: Final answer
    x = 42,810.66

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1.5x scale

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.