Home / 90,149.54-124,397.99-49,862.43

Finding the Fourth Proportional to 90,149.54, 124,397.99 and 49,862.43

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Solution

The fourth proportional to 90,149.54, 124,397.99 and 49,862.43 is: 68,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,149.54 : 124,397.99 = 49,862.43 : x
  2. Step 2: Convert to fraction form
    90,149.54/124,397.99 = 49,862.43/x
  3. Step 3: Cross multiply
    90,149.54x = 124,397.99 × 49,862.43
  4. Step 4: Simplify right side
    90,149.54x = 6,202,785,819.20
  5. Step 5: Solve for x
    x = 6,202,785,819.20/90,149.54
  6. Step 6: Final answer
    x = 68,805.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.