Home / 57,067.86-78,642.61-41,122.20

Finding the Fourth Proportional to 57,067.86, 78,642.61 and 41,122.20

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Solution

The fourth proportional to 57,067.86, 78,642.61 and 41,122.20 is: 56,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,067.86 : 78,642.61 = 41,122.20 : x
  2. Step 2: Convert to fraction form
    57,067.86/78,642.61 = 41,122.20/x
  3. Step 3: Cross multiply
    57,067.86x = 78,642.61 × 41,122.20
  4. Step 4: Simplify right side
    57,067.86x = 3,233,957,136.94
  5. Step 5: Solve for x
    x = 3,233,957,136.94/57,067.86
  6. Step 6: Final answer
    x = 56,668.62

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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.