Home / 73,213.04-109,780.20-23,279.60

Finding the Fourth Proportional to 73,213.04, 109,780.20 and 23,279.60

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Solution

The fourth proportional to 73,213.04, 109,780.20 and 23,279.60 is: 34,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,213.04 : 109,780.20 = 23,279.60 : x
  2. Step 2: Convert to fraction form
    73,213.04/109,780.20 = 23,279.60/x
  3. Step 3: Cross multiply
    73,213.04x = 109,780.20 × 23,279.60
  4. Step 4: Simplify right side
    73,213.04x = 2,555,639,143.92
  5. Step 5: Solve for x
    x = 2,555,639,143.92/73,213.04
  6. Step 6: Final answer
    x = 34,906.88

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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.