Home / 87,144.48-120,259.38-49,418.74

Finding the Fourth Proportional to 87,144.48, 120,259.38 and 49,418.74

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Solution

The fourth proportional to 87,144.48, 120,259.38 and 49,418.74 is: 68,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144.48 : 120,259.38 = 49,418.74 : x
  2. Step 2: Convert to fraction form
    87,144.48/120,259.38 = 49,418.74/x
  3. Step 3: Cross multiply
    87,144.48x = 120,259.38 × 49,418.74
  4. Step 4: Simplify right side
    87,144.48x = 5,943,067,032.78
  5. Step 5: Solve for x
    x = 5,943,067,032.78/87,144.48
  6. Step 6: Final answer
    x = 68,197.86

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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.