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Finding the Fourth Proportional to 73,127.60, 109,691.40 and 41,937.20

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Solution

The fourth proportional to 73,127.60, 109,691.40 and 41,937.20 is: 62,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127.60 : 109,691.40 = 41,937.20 : x
  2. Step 2: Convert to fraction form
    73,127.60/109,691.40 = 41,937.20/x
  3. Step 3: Cross multiply
    73,127.60x = 109,691.40 × 41,937.20
  4. Step 4: Simplify right side
    73,127.60x = 4,600,150,180.08
  5. Step 5: Solve for x
    x = 4,600,150,180.08/73,127.60
  6. Step 6: Final answer
    x = 62,905.80

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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.