Home / 80,634.46-120,954.39-28,044.40

Finding the Fourth Proportional to 80,634.46, 120,954.39 and 28,044.40

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Solution

The fourth proportional to 80,634.46, 120,954.39 and 28,044.40 is: 42,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,634.46 : 120,954.39 = 28,044.40 : x
  2. Step 2: Convert to fraction form
    80,634.46/120,954.39 = 28,044.40/x
  3. Step 3: Cross multiply
    80,634.46x = 120,954.39 × 28,044.40
  4. Step 4: Simplify right side
    80,634.46x = 3,392,093,294.92
  5. Step 5: Solve for x
    x = 3,392,093,294.92/80,634.46
  6. Step 6: Final answer
    x = 42,067.54

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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.