Home / 80,976.68-111,747.97-45,169.01

Finding the Fourth Proportional to 80,976.68, 111,747.97 and 45,169.01

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Solution

The fourth proportional to 80,976.68, 111,747.97 and 45,169.01 is: 62,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,976.68 : 111,747.97 = 45,169.01 : x
  2. Step 2: Convert to fraction form
    80,976.68/111,747.97 = 45,169.01/x
  3. Step 3: Cross multiply
    80,976.68x = 111,747.97 × 45,169.01
  4. Step 4: Simplify right side
    80,976.68x = 5,047,545,174.41
  5. Step 5: Solve for x
    x = 5,047,545,174.41/80,976.68
  6. Step 6: Final answer
    x = 62,333.32

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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.