Home / 69,135.60-95,405.76-40,472.16

Finding the Fourth Proportional to 69,135.60, 95,405.76 and 40,472.16

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Solution

The fourth proportional to 69,135.60, 95,405.76 and 40,472.16 is: 55,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.60 : 95,405.76 = 40,472.16 : x
  2. Step 2: Convert to fraction form
    69,135.60/95,405.76 = 40,472.16/x
  3. Step 3: Cross multiply
    69,135.60x = 95,405.76 × 40,472.16
  4. Step 4: Simplify right side
    69,135.60x = 3,861,277,183.64
  5. Step 5: Solve for x
    x = 3,861,277,183.64/69,135.60
  6. Step 6: Final answer
    x = 55,850.78

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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.