Home / 80,488.71-120,733.07-27,898.20

Finding the Fourth Proportional to 80,488.71, 120,733.07 and 27,898.20

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Solution

The fourth proportional to 80,488.71, 120,733.07 and 27,898.20 is: 41,847.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488.71 : 120,733.07 = 27,898.20 : x
  2. Step 2: Convert to fraction form
    80,488.71/120,733.07 = 27,898.20/x
  3. Step 3: Cross multiply
    80,488.71x = 120,733.07 × 27,898.20
  4. Step 4: Simplify right side
    80,488.71x = 3,368,234,845.85
  5. Step 5: Solve for x
    x = 3,368,234,845.85/80,488.71
  6. Step 6: Final answer
    x = 41,847.29

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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.