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Finding the Fourth Proportional to 73,819.92, 101,871.36 and 40,285.92

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Solution

The fourth proportional to 73,819.92, 101,871.36 and 40,285.92 is: 55,594.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,819.92 : 101,871.36 = 40,285.92 : x
  2. Step 2: Convert to fraction form
    73,819.92/101,871.36 = 40,285.92/x
  3. Step 3: Cross multiply
    73,819.92x = 101,871.36 × 40,285.92
  4. Step 4: Simplify right side
    73,819.92x = 4,103,981,459.25
  5. Step 5: Solve for x
    x = 4,103,981,459.25/73,819.92
  6. Step 6: Final answer
    x = 55,594.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.