Home / 71,869.44-107,808-21,951.04

Finding the Fourth Proportional to 71,869.44, 107,808 and 21,951.04

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Solution

The fourth proportional to 71,869.44, 107,808 and 21,951.04 is: 32,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869.44 : 107,808 = 21,951.04 : x
  2. Step 2: Convert to fraction form
    71,869.44/107,808 = 21,951.04/x
  3. Step 3: Cross multiply
    71,869.44x = 107,808 × 21,951.04
  4. Step 4: Simplify right side
    71,869.44x = 2,366,497,720.32
  5. Step 5: Solve for x
    x = 2,366,497,720.32/71,869.44
  6. Step 6: Final answer
    x = 32,927.73

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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.