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Finding the Fourth Proportional to 71,989.50, 108,001.80 and 22,741.50

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Solution

The fourth proportional to 71,989.50, 108,001.80 and 22,741.50 is: 34,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,989.50 : 108,001.80 = 22,741.50 : x
  2. Step 2: Convert to fraction form
    71,989.50/108,001.80 = 22,741.50/x
  3. Step 3: Cross multiply
    71,989.50x = 108,001.80 × 22,741.50
  4. Step 4: Simplify right side
    71,989.50x = 2,456,122,934.70
  5. Step 5: Solve for x
    x = 2,456,122,934.70/71,989.50
  6. Step 6: Final answer
    x = 34,117.79

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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.