Home / 42,720.24-63,981.90-29,581.92

Finding the Fourth Proportional to 42,720.24, 63,981.90 and 29,581.92

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Solution

The fourth proportional to 42,720.24, 63,981.90 and 29,581.92 is: 44,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,720.24 : 63,981.90 = 29,581.92 : x
  2. Step 2: Convert to fraction form
    42,720.24/63,981.90 = 29,581.92/x
  3. Step 3: Cross multiply
    42,720.24x = 63,981.90 × 29,581.92
  4. Step 4: Simplify right side
    42,720.24x = 1,892,707,447.25
  5. Step 5: Solve for x
    x = 1,892,707,447.25/42,720.24
  6. Step 6: Final answer
    x = 44,304.70

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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.