Home / 80,519.36-120,763.92-36,137.84

Finding the Fourth Proportional to 80,519.36, 120,763.92 and 36,137.84

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Solution

The fourth proportional to 80,519.36, 120,763.92 and 36,137.84 is: 54,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.36 : 120,763.92 = 36,137.84 : x
  2. Step 2: Convert to fraction form
    80,519.36/120,763.92 = 36,137.84/x
  3. Step 3: Cross multiply
    80,519.36x = 120,763.92 × 36,137.84
  4. Step 4: Simplify right side
    80,519.36x = 4,364,147,218.73
  5. Step 5: Solve for x
    x = 4,364,147,218.73/80,519.36
  6. Step 6: Final answer
    x = 54,199.97

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1.5x scale

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.