Home / 80,431.45-120,644.15-24,270.08

Finding the Fourth Proportional to 80,431.45, 120,644.15 and 24,270.08

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Solution

The fourth proportional to 80,431.45, 120,644.15 and 24,270.08 is: 36,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,431.45 : 120,644.15 = 24,270.08 : x
  2. Step 2: Convert to fraction form
    80,431.45/120,644.15 = 24,270.08/x
  3. Step 3: Cross multiply
    80,431.45x = 120,644.15 × 24,270.08
  4. Step 4: Simplify right side
    80,431.45x = 2,928,042,447.46
  5. Step 5: Solve for x
    x = 2,928,042,447.46/80,431.45
  6. Step 6: Final answer
    x = 36,404.20

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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.