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Finding the Fourth Proportional to 81,772.80, 122,663.16 and 22,607.16

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Solution

The fourth proportional to 81,772.80, 122,663.16 and 22,607.16 is: 33,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,772.80 : 122,663.16 = 22,607.16 : x
  2. Step 2: Convert to fraction form
    81,772.80/122,663.16 = 22,607.16/x
  3. Step 3: Cross multiply
    81,772.80x = 122,663.16 × 22,607.16
  4. Step 4: Simplify right side
    81,772.80x = 2,773,065,684.23
  5. Step 5: Solve for x
    x = 2,773,065,684.23/81,772.80
  6. Step 6: Final answer
    x = 33,911.83

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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.