Home / 80,493.26-120,712.55-27,890.46

Finding the Fourth Proportional to 80,493.26, 120,712.55 and 27,890.46

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Solution

The fourth proportional to 80,493.26, 120,712.55 and 27,890.46 is: 41,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,493.26 : 120,712.55 = 27,890.46 : x
  2. Step 2: Convert to fraction form
    80,493.26/120,712.55 = 27,890.46/x
  3. Step 3: Cross multiply
    80,493.26x = 120,712.55 × 27,890.46
  4. Step 4: Simplify right side
    80,493.26x = 3,366,728,407.82
  5. Step 5: Solve for x
    x = 3,366,728,407.82/80,493.26
  6. Step 6: Final answer
    x = 41,826.22

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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.