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Finding the Fourth Proportional to 80,542.82, 120,747.72 and 35,532.12

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Solution

The fourth proportional to 80,542.82, 120,747.72 and 35,532.12 is: 53,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,542.82 : 120,747.72 = 35,532.12 : x
  2. Step 2: Convert to fraction form
    80,542.82/120,747.72 = 35,532.12/x
  3. Step 3: Cross multiply
    80,542.82x = 120,747.72 × 35,532.12
  4. Step 4: Simplify right side
    80,542.82x = 4,290,422,476.77
  5. Step 5: Solve for x
    x = 4,290,422,476.77/80,542.82
  6. Step 6: Final answer
    x = 53,268.84

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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.