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Finding the Fourth Proportional to 99,489.92, 137,295.84 and 54,777.92

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Solution

The fourth proportional to 99,489.92, 137,295.84 and 54,777.92 is: 75,593.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,489.92 : 137,295.84 = 54,777.92 : x
  2. Step 2: Convert to fraction form
    99,489.92/137,295.84 = 54,777.92/x
  3. Step 3: Cross multiply
    99,489.92x = 137,295.84 × 54,777.92
  4. Step 4: Simplify right side
    99,489.92x = 7,520,780,539.85
  5. Step 5: Solve for x
    x = 7,520,780,539.85/99,489.92
  6. Step 6: Final answer
    x = 75,593.39

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1.5x scale

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.