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Finding the Fourth Proportional to 80,367.52, 120,512.40 and 27,758.56

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Solution

The fourth proportional to 80,367.52, 120,512.40 and 27,758.56 is: 41,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,367.52 : 120,512.40 = 27,758.56 : x
  2. Step 2: Convert to fraction form
    80,367.52/120,512.40 = 27,758.56/x
  3. Step 3: Cross multiply
    80,367.52x = 120,512.40 × 27,758.56
  4. Step 4: Simplify right side
    80,367.52x = 3,345,250,686.14
  5. Step 5: Solve for x
    x = 3,345,250,686.14/80,367.52
  6. Step 6: Final answer
    x = 41,624.41

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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.