Home / 87,668.61-120,949.44-53,649.83

Finding the Fourth Proportional to 87,668.61, 120,949.44 and 53,649.83

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Solution

The fourth proportional to 87,668.61, 120,949.44 and 53,649.83 is: 74,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,668.61 : 120,949.44 = 53,649.83 : x
  2. Step 2: Convert to fraction form
    87,668.61/120,949.44 = 53,649.83/x
  3. Step 3: Cross multiply
    87,668.61x = 120,949.44 × 53,649.83
  4. Step 4: Simplify right side
    87,668.61x = 6,488,916,289.85
  5. Step 5: Solve for x
    x = 6,488,916,289.85/87,668.61
  6. Step 6: Final answer
    x = 74,016.42

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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.