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Finding the Fourth Proportional to 73,234.20, 109,857.78 and 20,644.14

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Solution

The fourth proportional to 73,234.20, 109,857.78 and 20,644.14 is: 30,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,234.20 : 109,857.78 = 20,644.14 : x
  2. Step 2: Convert to fraction form
    73,234.20/109,857.78 = 20,644.14/x
  3. Step 3: Cross multiply
    73,234.20x = 109,857.78 × 20,644.14
  4. Step 4: Simplify right side
    73,234.20x = 2,267,919,390.41
  5. Step 5: Solve for x
    x = 2,267,919,390.41/73,234.20
  6. Step 6: Final answer
    x = 30,968.04

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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.