Home / 87,581.90-120,866.38-49,356.66

Finding the Fourth Proportional to 87,581.90, 120,866.38 and 49,356.66

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Solution

The fourth proportional to 87,581.90, 120,866.38 and 49,356.66 is: 68,114.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,581.90 : 120,866.38 = 49,356.66 : x
  2. Step 2: Convert to fraction form
    87,581.90/120,866.38 = 49,356.66/x
  3. Step 3: Cross multiply
    87,581.90x = 120,866.38 × 49,356.66
  4. Step 4: Simplify right side
    87,581.90x = 5,965,560,823.09
  5. Step 5: Solve for x
    x = 5,965,560,823.09/87,581.90
  6. Step 6: Final answer
    x = 68,114.08

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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.