Home / 80,236.44-120,354.12-62,721

Finding the Fourth Proportional to 80,236.44, 120,354.12 and 62,721

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Solution

The fourth proportional to 80,236.44, 120,354.12 and 62,721 is: 94,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,236.44 : 120,354.12 = 62,721 : x
  2. Step 2: Convert to fraction form
    80,236.44/120,354.12 = 62,721/x
  3. Step 3: Cross multiply
    80,236.44x = 120,354.12 × 62,721
  4. Step 4: Simplify right side
    80,236.44x = 7,548,730,760.52
  5. Step 5: Solve for x
    x = 7,548,730,760.52/80,236.44
  6. Step 6: Final answer
    x = 94,081.08

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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.