Home / 80,834.88-121,247.52-36,443.68

Finding the Fourth Proportional to 80,834.88, 121,247.52 and 36,443.68

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Solution

The fourth proportional to 80,834.88, 121,247.52 and 36,443.68 is: 54,663.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834.88 : 121,247.52 = 36,443.68 : x
  2. Step 2: Convert to fraction form
    80,834.88/121,247.52 = 36,443.68/x
  3. Step 3: Cross multiply
    80,834.88x = 121,247.52 × 36,443.68
  4. Step 4: Simplify right side
    80,834.88x = 4,418,705,819.67
  5. Step 5: Solve for x
    x = 4,418,705,819.67/80,834.88
  6. Step 6: Final answer
    x = 54,663.36

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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.