Home / 80,213.12-120,437.95-44,743.74

Finding the Fourth Proportional to 80,213.12, 120,437.95 and 44,743.74

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Solution

The fourth proportional to 80,213.12, 120,437.95 and 44,743.74 is: 67,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,213.12 : 120,437.95 = 44,743.74 : x
  2. Step 2: Convert to fraction form
    80,213.12/120,437.95 = 44,743.74/x
  3. Step 3: Cross multiply
    80,213.12x = 120,437.95 × 44,743.74
  4. Step 4: Simplify right side
    80,213.12x = 5,388,844,320.93
  5. Step 5: Solve for x
    x = 5,388,844,320.93/80,213.12
  6. Step 6: Final answer
    x = 67,181.58

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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.