Home / 81,608.10-122,402.43-22,449.78

Finding the Fourth Proportional to 81,608.10, 122,402.43 and 22,449.78

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Solution

The fourth proportional to 81,608.10, 122,402.43 and 22,449.78 is: 33,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,608.10 : 122,402.43 = 22,449.78 : x
  2. Step 2: Convert to fraction form
    81,608.10/122,402.43 = 22,449.78/x
  3. Step 3: Cross multiply
    81,608.10x = 122,402.43 × 22,449.78
  4. Step 4: Simplify right side
    81,608.10x = 2,747,907,624.97
  5. Step 5: Solve for x
    x = 2,747,907,624.97/81,608.10
  6. Step 6: Final answer
    x = 33,672.00

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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.