Home / 87,482.73-131,244.92-28,318.40

Finding the Fourth Proportional to 87,482.73, 131,244.92 and 28,318.40

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Solution

The fourth proportional to 87,482.73, 131,244.92 and 28,318.40 is: 42,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,482.73 : 131,244.92 = 28,318.40 : x
  2. Step 2: Convert to fraction form
    87,482.73/131,244.92 = 28,318.40/x
  3. Step 3: Cross multiply
    87,482.73x = 131,244.92 × 28,318.40
  4. Step 4: Simplify right side
    87,482.73x = 3,716,646,142.53
  5. Step 5: Solve for x
    x = 3,716,646,142.53/87,482.73
  6. Step 6: Final answer
    x = 42,484.34

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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.