Home / 82,479.68-123,731.70-29,876.90

Finding the Fourth Proportional to 82,479.68, 123,731.70 and 29,876.90

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Solution

The fourth proportional to 82,479.68, 123,731.70 and 29,876.90 is: 44,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,479.68 : 123,731.70 = 29,876.90 : x
  2. Step 2: Convert to fraction form
    82,479.68/123,731.70 = 29,876.90/x
  3. Step 3: Cross multiply
    82,479.68x = 123,731.70 × 29,876.90
  4. Step 4: Simplify right side
    82,479.68x = 3,696,719,627.73
  5. Step 5: Solve for x
    x = 3,696,719,627.73/82,479.68
  6. Step 6: Final answer
    x = 44,819.76

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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.