Home / 80,785.62-121,011.84-47,404.44

Finding the Fourth Proportional to 80,785.62, 121,011.84 and 47,404.44

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Solution

The fourth proportional to 80,785.62, 121,011.84 and 47,404.44 is: 71,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,785.62 : 121,011.84 = 47,404.44 : x
  2. Step 2: Convert to fraction form
    80,785.62/121,011.84 = 47,404.44/x
  3. Step 3: Cross multiply
    80,785.62x = 121,011.84 × 47,404.44
  4. Step 4: Simplify right side
    80,785.62x = 5,736,498,508.57
  5. Step 5: Solve for x
    x = 5,736,498,508.57/80,785.62
  6. Step 6: Final answer
    x = 71,008.91

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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.