Home / 87,980.88-121,385.07-49,736.73

Finding the Fourth Proportional to 87,980.88, 121,385.07 and 49,736.73

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Solution

The fourth proportional to 87,980.88, 121,385.07 and 49,736.73 is: 68,620.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,980.88 : 121,385.07 = 49,736.73 : x
  2. Step 2: Convert to fraction form
    87,980.88/121,385.07 = 49,736.73/x
  3. Step 3: Cross multiply
    87,980.88x = 121,385.07 × 49,736.73
  4. Step 4: Simplify right side
    87,980.88x = 6,037,296,452.62
  5. Step 5: Solve for x
    x = 6,037,296,452.62/87,980.88
  6. Step 6: Final answer
    x = 68,620.55

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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.