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Finding the Fourth Proportional to 80,019.68, 120,044.10 and 27,434.48

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Solution

The fourth proportional to 80,019.68, 120,044.10 and 27,434.48 is: 41,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,019.68 : 120,044.10 = 27,434.48 : x
  2. Step 2: Convert to fraction form
    80,019.68/120,044.10 = 27,434.48/x
  3. Step 3: Cross multiply
    80,019.68x = 120,044.10 × 27,434.48
  4. Step 4: Simplify right side
    80,019.68x = 3,293,347,460.57
  5. Step 5: Solve for x
    x = 3,293,347,460.57/80,019.68
  6. Step 6: Final answer
    x = 41,156.72

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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.