Home / 81,542.28-122,315.76-22,378.44

Finding the Fourth Proportional to 81,542.28, 122,315.76 and 22,378.44

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Solution

The fourth proportional to 81,542.28, 122,315.76 and 22,378.44 is: 33,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,542.28 : 122,315.76 = 22,378.44 : x
  2. Step 2: Convert to fraction form
    81,542.28/122,315.76 = 22,378.44/x
  3. Step 3: Cross multiply
    81,542.28x = 122,315.76 × 22,378.44
  4. Step 4: Simplify right side
    81,542.28x = 2,737,235,896.21
  5. Step 5: Solve for x
    x = 2,737,235,896.21/81,542.28
  6. Step 6: Final answer
    x = 33,568.30

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1.5x scale

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.