Home / 74,140.92-111,234.06-21,550.86

Finding the Fourth Proportional to 74,140.92, 111,234.06 and 21,550.86

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Solution

The fourth proportional to 74,140.92, 111,234.06 and 21,550.86 is: 32,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.92 : 111,234.06 = 21,550.86 : x
  2. Step 2: Convert to fraction form
    74,140.92/111,234.06 = 21,550.86/x
  3. Step 3: Cross multiply
    74,140.92x = 111,234.06 × 21,550.86
  4. Step 4: Simplify right side
    74,140.92x = 2,397,189,654.29
  5. Step 5: Solve for x
    x = 2,397,189,654.29/74,140.92
  6. Step 6: Final answer
    x = 32,332.88

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1.5x scale

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.