Home / 80,213.11-120,437.93-44,743.72

Finding the Fourth Proportional to 80,213.11, 120,437.93 and 44,743.72

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Solution

The fourth proportional to 80,213.11, 120,437.93 and 44,743.72 is: 67,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,213.11 : 120,437.93 = 44,743.72 : x
  2. Step 2: Convert to fraction form
    80,213.11/120,437.93 = 44,743.72/x
  3. Step 3: Cross multiply
    80,213.11x = 120,437.93 × 44,743.72
  4. Step 4: Simplify right side
    80,213.11x = 5,388,841,017.30
  5. Step 5: Solve for x
    x = 5,388,841,017.30/80,213.11
  6. Step 6: Final answer
    x = 67,181.55

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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.