Home / 87,394.50-120,604.55-49,668.75

Finding the Fourth Proportional to 87,394.50, 120,604.55 and 49,668.75

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Solution

The fourth proportional to 87,394.50, 120,604.55 and 49,668.75 is: 68,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,394.50 : 120,604.55 = 49,668.75 : x
  2. Step 2: Convert to fraction form
    87,394.50/120,604.55 = 49,668.75/x
  3. Step 3: Cross multiply
    87,394.50x = 120,604.55 × 49,668.75
  4. Step 4: Simplify right side
    87,394.50x = 5,990,276,994.47
  5. Step 5: Solve for x
    x = 5,990,276,994.47/87,394.50
  6. Step 6: Final answer
    x = 68,542.95

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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.