Home / 87,883.40-121,286.56-49,649.97

Finding the Fourth Proportional to 87,883.40, 121,286.56 and 49,649.97

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Solution

The fourth proportional to 87,883.40, 121,286.56 and 49,649.97 is: 68,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.40 : 121,286.56 = 49,649.97 : x
  2. Step 2: Convert to fraction form
    87,883.40/121,286.56 = 49,649.97/x
  3. Step 3: Cross multiply
    87,883.40x = 121,286.56 × 49,649.97
  4. Step 4: Simplify right side
    87,883.40x = 6,021,873,857.33
  5. Step 5: Solve for x
    x = 6,021,873,857.33/87,883.40
  6. Step 6: Final answer
    x = 68,521.18

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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.