Home / 279,610.08-419,383.72-77,234.95

Finding the Fourth Proportional to 279,610.08, 419,383.72 and 77,234.95

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Solution

The fourth proportional to 279,610.08, 419,383.72 and 77,234.95 is: 115,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,610.08 : 419,383.72 = 77,234.95 : x
  2. Step 2: Convert to fraction form
    279,610.08/419,383.72 = 77,234.95/x
  3. Step 3: Cross multiply
    279,610.08x = 419,383.72 × 77,234.95
  4. Step 4: Simplify right side
    279,610.08x = 32,391,080,645.01
  5. Step 5: Solve for x
    x = 32,391,080,645.01/279,610.08
  6. Step 6: Final answer
    x = 115,843.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.