Home / 80,716.38-121,074.66-36,334.86

Finding the Fourth Proportional to 80,716.38, 121,074.66 and 36,334.86

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Solution

The fourth proportional to 80,716.38, 121,074.66 and 36,334.86 is: 54,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,716.38 : 121,074.66 = 36,334.86 : x
  2. Step 2: Convert to fraction form
    80,716.38/121,074.66 = 36,334.86/x
  3. Step 3: Cross multiply
    80,716.38x = 121,074.66 × 36,334.86
  4. Step 4: Simplify right side
    80,716.38x = 4,399,230,820.65
  5. Step 5: Solve for x
    x = 4,399,230,820.65/80,716.38
  6. Step 6: Final answer
    x = 54,502.33

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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.