Home / 80,427.85-120,649.97-27,837.18

Finding the Fourth Proportional to 80,427.85, 120,649.97 and 27,837.18

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Solution

The fourth proportional to 80,427.85, 120,649.97 and 27,837.18 is: 41,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,427.85 : 120,649.97 = 27,837.18 : x
  2. Step 2: Convert to fraction form
    80,427.85/120,649.97 = 27,837.18/x
  3. Step 3: Cross multiply
    80,427.85x = 120,649.97 × 27,837.18
  4. Step 4: Simplify right side
    80,427.85x = 3,358,554,931.88
  5. Step 5: Solve for x
    x = 3,358,554,931.88/80,427.85
  6. Step 6: Final answer
    x = 41,758.61

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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.