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Finding the Fourth Proportional to 81,737.61, 122,608.72 and 22,573.28

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Solution

The fourth proportional to 81,737.61, 122,608.72 and 22,573.28 is: 33,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,737.61 : 122,608.72 = 22,573.28 : x
  2. Step 2: Convert to fraction form
    81,737.61/122,608.72 = 22,573.28/x
  3. Step 3: Cross multiply
    81,737.61x = 122,608.72 × 22,573.28
  4. Step 4: Simplify right side
    81,737.61x = 2,767,680,967.00
  5. Step 5: Solve for x
    x = 2,767,680,967.00/81,737.61
  6. Step 6: Final answer
    x = 33,860.56

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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.