Home / 55,371.28-83,067.86-20,311.24

Finding the Fourth Proportional to 55,371.28, 83,067.86 and 20,311.24

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Solution

The fourth proportional to 55,371.28, 83,067.86 and 20,311.24 is: 30,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,371.28 : 83,067.86 = 20,311.24 : x
  2. Step 2: Convert to fraction form
    55,371.28/83,067.86 = 20,311.24/x
  3. Step 3: Cross multiply
    55,371.28x = 83,067.86 × 20,311.24
  4. Step 4: Simplify right side
    55,371.28x = 1,687,211,240.75
  5. Step 5: Solve for x
    x = 1,687,211,240.75/55,371.28
  6. Step 6: Final answer
    x = 30,470.87

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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.