Home / 83,802.20-115,614.11-47,972.92

Finding the Fourth Proportional to 83,802.20, 115,614.11 and 47,972.92

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Solution

The fourth proportional to 83,802.20, 115,614.11 and 47,972.92 is: 66,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,802.20 : 115,614.11 = 47,972.92 : x
  2. Step 2: Convert to fraction form
    83,802.20/115,614.11 = 47,972.92/x
  3. Step 3: Cross multiply
    83,802.20x = 115,614.11 × 47,972.92
  4. Step 4: Simplify right side
    83,802.20x = 5,546,346,449.90
  5. Step 5: Solve for x
    x = 5,546,346,449.90/83,802.20
  6. Step 6: Final answer
    x = 66,183.78

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1.5x scale

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.