Home / 87,906.72-121,296.24-49,648.80

Finding the Fourth Proportional to 87,906.72, 121,296.24 and 49,648.80

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Solution

The fourth proportional to 87,906.72, 121,296.24 and 49,648.80 is: 68,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.72 : 121,296.24 = 49,648.80 : x
  2. Step 2: Convert to fraction form
    87,906.72/121,296.24 = 49,648.80/x
  3. Step 3: Cross multiply
    87,906.72x = 121,296.24 × 49,648.80
  4. Step 4: Simplify right side
    87,906.72x = 6,022,212,760.51
  5. Step 5: Solve for x
    x = 6,022,212,760.51/87,906.72
  6. Step 6: Final answer
    x = 68,506.85

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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.