Home / 80,849.64-111,572.57-45,039.74

Finding the Fourth Proportional to 80,849.64, 111,572.57 and 45,039.74

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Solution

The fourth proportional to 80,849.64, 111,572.57 and 45,039.74 is: 62,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,849.64 : 111,572.57 = 45,039.74 : x
  2. Step 2: Convert to fraction form
    80,849.64/111,572.57 = 45,039.74/x
  3. Step 3: Cross multiply
    80,849.64x = 111,572.57 × 45,039.74
  4. Step 4: Simplify right side
    80,849.64x = 5,025,199,318.73
  5. Step 5: Solve for x
    x = 5,025,199,318.73/80,849.64
  6. Step 6: Final answer
    x = 62,154.88

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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.