Home / 80,178.13-120,270.44-35,796.61

Finding the Fourth Proportional to 80,178.13, 120,270.44 and 35,796.61

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Solution

The fourth proportional to 80,178.13, 120,270.44 and 35,796.61 is: 53,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,178.13 : 120,270.44 = 35,796.61 : x
  2. Step 2: Convert to fraction form
    80,178.13/120,270.44 = 35,796.61/x
  3. Step 3: Cross multiply
    80,178.13x = 120,270.44 × 35,796.61
  4. Step 4: Simplify right side
    80,178.13x = 4,305,274,035.21
  5. Step 5: Solve for x
    x = 4,305,274,035.21/80,178.13
  6. Step 6: Final answer
    x = 53,696.36

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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.