Home / 325,799.38-488,691.97-89,142.05

Finding the Fourth Proportional to 325,799.38, 488,691.97 and 89,142.05

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Solution

The fourth proportional to 325,799.38, 488,691.97 and 89,142.05 is: 133,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,799.38 : 488,691.97 = 89,142.05 : x
  2. Step 2: Convert to fraction form
    325,799.38/488,691.97 = 89,142.05/x
  3. Step 3: Cross multiply
    325,799.38x = 488,691.97 × 89,142.05
  4. Step 4: Simplify right side
    325,799.38x = 43,563,005,023.21
  5. Step 5: Solve for x
    x = 43,563,005,023.21/325,799.38
  6. Step 6: Final answer
    x = 133,711.13

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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.