Home / 81,891.82-122,659.44-50,206.06

Finding the Fourth Proportional to 81,891.82, 122,659.44 and 50,206.06

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Solution

The fourth proportional to 81,891.82, 122,659.44 and 50,206.06 is: 75,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,891.82 : 122,659.44 = 50,206.06 : x
  2. Step 2: Convert to fraction form
    81,891.82/122,659.44 = 50,206.06/x
  3. Step 3: Cross multiply
    81,891.82x = 122,659.44 × 50,206.06
  4. Step 4: Simplify right side
    81,891.82x = 6,158,247,204.21
  5. Step 5: Solve for x
    x = 6,158,247,204.21/81,891.82
  6. Step 6: Final answer
    x = 75,199.78

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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.