Home / 71,976.20-107,972.40-22,055.90

Finding the Fourth Proportional to 71,976.20, 107,972.40 and 22,055.90

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Solution

The fourth proportional to 71,976.20, 107,972.40 and 22,055.90 is: 33,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.20 : 107,972.40 = 22,055.90 : x
  2. Step 2: Convert to fraction form
    71,976.20/107,972.40 = 22,055.90/x
  3. Step 3: Cross multiply
    71,976.20x = 107,972.40 × 22,055.90
  4. Step 4: Simplify right side
    71,976.20x = 2,381,428,457.16
  5. Step 5: Solve for x
    x = 2,381,428,457.16/71,976.20
  6. Step 6: Final answer
    x = 33,086.33

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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.