Home / 71,982.20-107,981.40-22,061.90

Finding the Fourth Proportional to 71,982.20, 107,981.40 and 22,061.90

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Solution

The fourth proportional to 71,982.20, 107,981.40 and 22,061.90 is: 33,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,982.20 : 107,981.40 = 22,061.90 : x
  2. Step 2: Convert to fraction form
    71,982.20/107,981.40 = 22,061.90/x
  3. Step 3: Cross multiply
    71,982.20x = 107,981.40 × 22,061.90
  4. Step 4: Simplify right side
    71,982.20x = 2,382,274,848.66
  5. Step 5: Solve for x
    x = 2,382,274,848.66/71,982.20
  6. Step 6: Final answer
    x = 33,095.33

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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.