Home / 87,687.69-120,979.97-49,442.43

Finding the Fourth Proportional to 87,687.69, 120,979.97 and 49,442.43

Calculator

Solution

The fourth proportional to 87,687.69, 120,979.97 and 49,442.43 is: 68,214.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687.69 : 120,979.97 = 49,442.43 : x
  2. Step 2: Convert to fraction form
    87,687.69/120,979.97 = 49,442.43/x
  3. Step 3: Cross multiply
    87,687.69x = 120,979.97 × 49,442.43
  4. Step 4: Simplify right side
    87,687.69x = 5,981,543,450.91
  5. Step 5: Solve for x
    x = 5,981,543,450.91/87,687.69
  6. Step 6: Final answer
    x = 68,214.18

Related Problems

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.