Home / 80,963.62-111,732.42-45,155.14

Finding the Fourth Proportional to 80,963.62, 111,732.42 and 45,155.14

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Solution

The fourth proportional to 80,963.62, 111,732.42 and 45,155.14 is: 62,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,963.62 : 111,732.42 = 45,155.14 : x
  2. Step 2: Convert to fraction form
    80,963.62/111,732.42 = 45,155.14/x
  3. Step 3: Cross multiply
    80,963.62x = 111,732.42 × 45,155.14
  4. Step 4: Simplify right side
    80,963.62x = 5,045,293,067.64
  5. Step 5: Solve for x
    x = 5,045,293,067.64/80,963.62
  6. Step 6: Final answer
    x = 62,315.56

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1.5x scale

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.