Home / 87,616.10-131,424.15-28,453.70

Finding the Fourth Proportional to 87,616.10, 131,424.15 and 28,453.70

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Solution

The fourth proportional to 87,616.10, 131,424.15 and 28,453.70 is: 42,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.10 : 131,424.15 = 28,453.70 : x
  2. Step 2: Convert to fraction form
    87,616.10/131,424.15 = 28,453.70/x
  3. Step 3: Cross multiply
    87,616.10x = 131,424.15 × 28,453.70
  4. Step 4: Simplify right side
    87,616.10x = 3,739,503,336.86
  5. Step 5: Solve for x
    x = 3,739,503,336.86/87,616.10
  6. Step 6: Final answer
    x = 42,680.55

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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.