Home / 71,872.20-107,808.32-21,949.61

Finding the Fourth Proportional to 71,872.20, 107,808.32 and 21,949.61

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Solution

The fourth proportional to 71,872.20, 107,808.32 and 21,949.61 is: 32,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,872.20 : 107,808.32 = 21,949.61 : x
  2. Step 2: Convert to fraction form
    71,872.20/107,808.32 = 21,949.61/x
  3. Step 3: Cross multiply
    71,872.20x = 107,808.32 × 21,949.61
  4. Step 4: Simplify right side
    71,872.20x = 2,366,349,929.97
  5. Step 5: Solve for x
    x = 2,366,349,929.97/71,872.20
  6. Step 6: Final answer
    x = 32,924.41

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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.