Home / 71,983.92-107,976.54-27,600.12

Finding the Fourth Proportional to 71,983.92, 107,976.54 and 27,600.12

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Solution

The fourth proportional to 71,983.92, 107,976.54 and 27,600.12 is: 41,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,983.92 : 107,976.54 = 27,600.12 : x
  2. Step 2: Convert to fraction form
    71,983.92/107,976.54 = 27,600.12/x
  3. Step 3: Cross multiply
    71,983.92x = 107,976.54 × 27,600.12
  4. Step 4: Simplify right side
    71,983.92x = 2,980,165,461.18
  5. Step 5: Solve for x
    x = 2,980,165,461.18/71,983.92
  6. Step 6: Final answer
    x = 41,400.43

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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.