Home / 87,745.52-121,144.20-60,879.44

Finding the Fourth Proportional to 87,745.52, 121,144.20 and 60,879.44

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Solution

The fourth proportional to 87,745.52, 121,144.20 and 60,879.44 is: 84,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,745.52 : 121,144.20 = 60,879.44 : x
  2. Step 2: Convert to fraction form
    87,745.52/121,144.20 = 60,879.44/x
  3. Step 3: Cross multiply
    87,745.52x = 121,144.20 × 60,879.44
  4. Step 4: Simplify right side
    87,745.52x = 7,375,191,055.25
  5. Step 5: Solve for x
    x = 7,375,191,055.25/87,745.52
  6. Step 6: Final answer
    x = 84,052.05

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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.