Home / 87,879.24-131,839.65-28,714.77

Finding the Fourth Proportional to 87,879.24, 131,839.65 and 28,714.77

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Solution

The fourth proportional to 87,879.24, 131,839.65 and 28,714.77 is: 43,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.24 : 131,839.65 = 28,714.77 : x
  2. Step 2: Convert to fraction form
    87,879.24/131,839.65 = 28,714.77/x
  3. Step 3: Cross multiply
    87,879.24x = 131,839.65 × 28,714.77
  4. Step 4: Simplify right side
    87,879.24x = 3,785,745,226.63
  5. Step 5: Solve for x
    x = 3,785,745,226.63/87,879.24
  6. Step 6: Final answer
    x = 43,078.95

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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.