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Finding the Fourth Proportional to 83,446.74, 125,168.90 and 20,267.35

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Solution

The fourth proportional to 83,446.74, 125,168.90 and 20,267.35 is: 30,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,446.74 : 125,168.90 = 20,267.35 : x
  2. Step 2: Convert to fraction form
    83,446.74/125,168.90 = 20,267.35/x
  3. Step 3: Cross multiply
    83,446.74x = 125,168.90 × 20,267.35
  4. Step 4: Simplify right side
    83,446.74x = 2,536,841,491.16
  5. Step 5: Solve for x
    x = 2,536,841,491.16/83,446.74
  6. Step 6: Final answer
    x = 30,400.73

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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.