Home / 87,639.28-131,463.15-24,459.28

Finding the Fourth Proportional to 87,639.28, 131,463.15 and 24,459.28

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Solution

The fourth proportional to 87,639.28, 131,463.15 and 24,459.28 is: 36,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,639.28 : 131,463.15 = 24,459.28 : x
  2. Step 2: Convert to fraction form
    87,639.28/131,463.15 = 24,459.28/x
  3. Step 3: Cross multiply
    87,639.28x = 131,463.15 × 24,459.28
  4. Step 4: Simplify right side
    87,639.28x = 3,215,493,995.53
  5. Step 5: Solve for x
    x = 3,215,493,995.53/87,639.28
  6. Step 6: Final answer
    x = 36,690.10

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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.