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Finding the Fourth Proportional to 80,212.98, 120,437.75 and 44,743.60

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Solution

The fourth proportional to 80,212.98, 120,437.75 and 44,743.60 is: 67,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212.98 : 120,437.75 = 44,743.60 : x
  2. Step 2: Convert to fraction form
    80,212.98/120,437.75 = 44,743.60/x
  3. Step 3: Cross multiply
    80,212.98x = 120,437.75 × 44,743.60
  4. Step 4: Simplify right side
    80,212.98x = 5,388,818,510.90
  5. Step 5: Solve for x
    x = 5,388,818,510.90/80,212.98
  6. Step 6: Final answer
    x = 67,181.38

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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.