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Finding the Fourth Proportional to 89,773.28, 134,511.12 and 54,606.56

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Solution

The fourth proportional to 89,773.28, 134,511.12 and 54,606.56 is: 81,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,773.28 : 134,511.12 = 54,606.56 : x
  2. Step 2: Convert to fraction form
    89,773.28/134,511.12 = 54,606.56/x
  3. Step 3: Cross multiply
    89,773.28x = 134,511.12 × 54,606.56
  4. Step 4: Simplify right side
    89,773.28x = 7,345,189,544.95
  5. Step 5: Solve for x
    x = 7,345,189,544.95/89,773.28
  6. Step 6: Final answer
    x = 81,819.33

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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.