Home / 87,940.32-121,326.80-49,694.88

Finding the Fourth Proportional to 87,940.32, 121,326.80 and 49,694.88

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Solution

The fourth proportional to 87,940.32, 121,326.80 and 49,694.88 is: 68,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.32 : 121,326.80 = 49,694.88 : x
  2. Step 2: Convert to fraction form
    87,940.32/121,326.80 = 49,694.88/x
  3. Step 3: Cross multiply
    87,940.32x = 121,326.80 × 49,694.88
  4. Step 4: Simplify right side
    87,940.32x = 6,029,320,766.78
  5. Step 5: Solve for x
    x = 6,029,320,766.78/87,940.32
  6. Step 6: Final answer
    x = 68,561.51

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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.