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Finding the Fourth Proportional to 80,469.80, 120,719.10 and 33,727.40

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Solution

The fourth proportional to 80,469.80, 120,719.10 and 33,727.40 is: 50,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,469.80 : 120,719.10 = 33,727.40 : x
  2. Step 2: Convert to fraction form
    80,469.80/120,719.10 = 33,727.40/x
  3. Step 3: Cross multiply
    80,469.80x = 120,719.10 × 33,727.40
  4. Step 4: Simplify right side
    80,469.80x = 4,071,541,373.34
  5. Step 5: Solve for x
    x = 4,071,541,373.34/80,469.80
  6. Step 6: Final answer
    x = 50,597.14

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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.