Home / 87,517.44-120,758.88-49,784.64

Finding the Fourth Proportional to 87,517.44, 120,758.88 and 49,784.64

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Solution

The fourth proportional to 87,517.44, 120,758.88 and 49,784.64 is: 68,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,517.44 : 120,758.88 = 49,784.64 : x
  2. Step 2: Convert to fraction form
    87,517.44/120,758.88 = 49,784.64/x
  3. Step 3: Cross multiply
    87,517.44x = 120,758.88 × 49,784.64
  4. Step 4: Simplify right side
    87,517.44x = 6,011,937,367.60
  5. Step 5: Solve for x
    x = 6,011,937,367.60/87,517.44
  6. Step 6: Final answer
    x = 68,694.16

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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.