Home / 80,843.52-111,565.44-49,013.76

Finding the Fourth Proportional to 80,843.52, 111,565.44 and 49,013.76

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Solution

The fourth proportional to 80,843.52, 111,565.44 and 49,013.76 is: 67,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,843.52 : 111,565.44 = 49,013.76 : x
  2. Step 2: Convert to fraction form
    80,843.52/111,565.44 = 49,013.76/x
  3. Step 3: Cross multiply
    80,843.52x = 111,565.44 × 49,013.76
  4. Step 4: Simplify right side
    80,843.52x = 5,468,241,700.45
  5. Step 5: Solve for x
    x = 5,468,241,700.45/80,843.52
  6. Step 6: Final answer
    x = 67,639.83

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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.