Home / 81,965.52-122,933.70-22,785.30

Finding the Fourth Proportional to 81,965.52, 122,933.70 and 22,785.30

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Solution

The fourth proportional to 81,965.52, 122,933.70 and 22,785.30 is: 34,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,965.52 : 122,933.70 = 22,785.30 : x
  2. Step 2: Convert to fraction form
    81,965.52/122,933.70 = 22,785.30/x
  3. Step 3: Cross multiply
    81,965.52x = 122,933.70 × 22,785.30
  4. Step 4: Simplify right side
    81,965.52x = 2,801,081,234.61
  5. Step 5: Solve for x
    x = 2,801,081,234.61/81,965.52
  6. Step 6: Final answer
    x = 34,173.90

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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.