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Finding the Fourth Proportional to 89,129.73, 133,693.29 and 21,662.27

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Solution

The fourth proportional to 89,129.73, 133,693.29 and 21,662.27 is: 32,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,129.73 : 133,693.29 = 21,662.27 : x
  2. Step 2: Convert to fraction form
    89,129.73/133,693.29 = 21,662.27/x
  3. Step 3: Cross multiply
    89,129.73x = 133,693.29 × 21,662.27
  4. Step 4: Simplify right side
    89,129.73x = 2,896,099,476.70
  5. Step 5: Solve for x
    x = 2,896,099,476.70/89,129.73
  6. Step 6: Final answer
    x = 32,493.08

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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.