Home / 80,519.91-120,716.34-50,875.26

Finding the Fourth Proportional to 80,519.91, 120,716.34 and 50,875.26

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Solution

The fourth proportional to 80,519.91, 120,716.34 and 50,875.26 is: 76,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.91 : 120,716.34 = 50,875.26 : x
  2. Step 2: Convert to fraction form
    80,519.91/120,716.34 = 50,875.26/x
  3. Step 3: Cross multiply
    80,519.91x = 120,716.34 × 50,875.26
  4. Step 4: Simplify right side
    80,519.91x = 6,141,475,183.75
  5. Step 5: Solve for x
    x = 6,141,475,183.75/80,519.91
  6. Step 6: Final answer
    x = 76,272.75

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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.