Home / 87,514.74-120,769.29-49,788.90

Finding the Fourth Proportional to 87,514.74, 120,769.29 and 49,788.90

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Solution

The fourth proportional to 87,514.74, 120,769.29 and 49,788.90 is: 68,708.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,514.74 : 120,769.29 = 49,788.90 : x
  2. Step 2: Convert to fraction form
    87,514.74/120,769.29 = 49,788.90/x
  3. Step 3: Cross multiply
    87,514.74x = 120,769.29 × 49,788.90
  4. Step 4: Simplify right side
    87,514.74x = 6,012,970,102.88
  5. Step 5: Solve for x
    x = 6,012,970,102.88/87,514.74
  6. Step 6: Final answer
    x = 68,708.08

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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.