Home / 87,617.01-120,911.36-49,891.26

Finding the Fourth Proportional to 87,617.01, 120,911.36 and 49,891.26

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Solution

The fourth proportional to 87,617.01, 120,911.36 and 49,891.26 is: 68,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.01 : 120,911.36 = 49,891.26 : x
  2. Step 2: Convert to fraction form
    87,617.01/120,911.36 = 49,891.26/x
  3. Step 3: Cross multiply
    87,617.01x = 120,911.36 × 49,891.26
  4. Step 4: Simplify right side
    87,617.01x = 6,032,419,849.26
  5. Step 5: Solve for x
    x = 6,032,419,849.26/87,617.01
  6. Step 6: Final answer
    x = 68,849.87

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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.