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Finding the Fourth Proportional to 81,487.92, 122,232 and 22,324.12

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Solution

The fourth proportional to 81,487.92, 122,232 and 22,324.12 is: 33,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,487.92 : 122,232 = 22,324.12 : x
  2. Step 2: Convert to fraction form
    81,487.92/122,232 = 22,324.12/x
  3. Step 3: Cross multiply
    81,487.92x = 122,232 × 22,324.12
  4. Step 4: Simplify right side
    81,487.92x = 2,728,721,835.84
  5. Step 5: Solve for x
    x = 2,728,721,835.84/81,487.92
  6. Step 6: Final answer
    x = 33,486.21

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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.