Home / 80,542.55-111,145.12-48,294.97

Finding the Fourth Proportional to 80,542.55, 111,145.12 and 48,294.97

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Solution

The fourth proportional to 80,542.55, 111,145.12 and 48,294.97 is: 66,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,542.55 : 111,145.12 = 48,294.97 : x
  2. Step 2: Convert to fraction form
    80,542.55/111,145.12 = 48,294.97/x
  3. Step 3: Cross multiply
    80,542.55x = 111,145.12 × 48,294.97
  4. Step 4: Simplify right side
    80,542.55x = 5,367,750,236.05
  5. Step 5: Solve for x
    x = 5,367,750,236.05/80,542.55
  6. Step 6: Final answer
    x = 66,644.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.