Home / 80,519.06-120,857.98-60,458.88

Finding the Fourth Proportional to 80,519.06, 120,857.98 and 60,458.88

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Solution

The fourth proportional to 80,519.06, 120,857.98 and 60,458.88 is: 90,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.06 : 120,857.98 = 60,458.88 : x
  2. Step 2: Convert to fraction form
    80,519.06/120,857.98 = 60,458.88/x
  3. Step 3: Cross multiply
    80,519.06x = 120,857.98 × 60,458.88
  4. Step 4: Simplify right side
    80,519.06x = 7,306,938,109.86
  5. Step 5: Solve for x
    x = 7,306,938,109.86/80,519.06
  6. Step 6: Final answer
    x = 90,747.93

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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.