Home / 87,418.24-120,633.40-49,177.13

Finding the Fourth Proportional to 87,418.24, 120,633.40 and 49,177.13

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Solution

The fourth proportional to 87,418.24, 120,633.40 and 49,177.13 is: 67,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,418.24 : 120,633.40 = 49,177.13 : x
  2. Step 2: Convert to fraction form
    87,418.24/120,633.40 = 49,177.13/x
  3. Step 3: Cross multiply
    87,418.24x = 120,633.40 × 49,177.13
  4. Step 4: Simplify right side
    87,418.24x = 5,932,403,852.45
  5. Step 5: Solve for x
    x = 5,932,403,852.45/87,418.24
  6. Step 6: Final answer
    x = 67,862.31

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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.