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Finding the Fourth Proportional to 83,812.20, 125,864.10 and 44,446.20

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Solution

The fourth proportional to 83,812.20, 125,864.10 and 44,446.20 is: 66,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,812.20 : 125,864.10 = 44,446.20 : x
  2. Step 2: Convert to fraction form
    83,812.20/125,864.10 = 44,446.20/x
  3. Step 3: Cross multiply
    83,812.20x = 125,864.10 × 44,446.20
  4. Step 4: Simplify right side
    83,812.20x = 5,594,180,961.42
  5. Step 5: Solve for x
    x = 5,594,180,961.42/83,812.20
  6. Step 6: Final answer
    x = 66,746.62

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1.5x scale

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.