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Finding the Fourth Proportional to 99,481.27, 149,022.03 and 49,409.90

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Solution

The fourth proportional to 99,481.27, 149,022.03 and 49,409.90 is: 74,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,481.27 : 149,022.03 = 49,409.90 : x
  2. Step 2: Convert to fraction form
    99,481.27/149,022.03 = 49,409.90/x
  3. Step 3: Cross multiply
    99,481.27x = 149,022.03 × 49,409.90
  4. Step 4: Simplify right side
    99,481.27x = 7,363,163,600.10
  5. Step 5: Solve for x
    x = 7,363,163,600.10/99,481.27
  6. Step 6: Final answer
    x = 74,015.58

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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.