Home / 80,431.82-120,648.66-24,272.42

Finding the Fourth Proportional to 80,431.82, 120,648.66 and 24,272.42

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Solution

The fourth proportional to 80,431.82, 120,648.66 and 24,272.42 is: 36,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,431.82 : 120,648.66 = 24,272.42 : x
  2. Step 2: Convert to fraction form
    80,431.82/120,648.66 = 24,272.42/x
  3. Step 3: Cross multiply
    80,431.82x = 120,648.66 × 24,272.42
  4. Step 4: Simplify right side
    80,431.82x = 2,928,434,344.71
  5. Step 5: Solve for x
    x = 2,928,434,344.71/80,431.82
  6. Step 6: Final answer
    x = 36,408.90

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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.