Home / 87,549.28-120,817.26-49,825.60

Finding the Fourth Proportional to 87,549.28, 120,817.26 and 49,825.60

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Solution

The fourth proportional to 87,549.28, 120,817.26 and 49,825.60 is: 68,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,549.28 : 120,817.26 = 49,825.60 : x
  2. Step 2: Convert to fraction form
    87,549.28/120,817.26 = 49,825.60/x
  3. Step 3: Cross multiply
    87,549.28x = 120,817.26 × 49,825.60
  4. Step 4: Simplify right side
    87,549.28x = 6,019,792,469.86
  5. Step 5: Solve for x
    x = 6,019,792,469.86/87,549.28
  6. Step 6: Final answer
    x = 68,758.90

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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.