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Finding the Fourth Proportional to 80,332.32, 120,522.78 and 27,747.12

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Solution

The fourth proportional to 80,332.32, 120,522.78 and 27,747.12 is: 41,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,332.32 : 120,522.78 = 27,747.12 : x
  2. Step 2: Convert to fraction form
    80,332.32/120,522.78 = 27,747.12/x
  3. Step 3: Cross multiply
    80,332.32x = 120,522.78 × 27,747.12
  4. Step 4: Simplify right side
    80,332.32x = 3,344,160,039.39
  5. Step 5: Solve for x
    x = 3,344,160,039.39/80,332.32
  6. Step 6: Final answer
    x = 41,629.07

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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.