Home / 80,086.11-120,137.33-27,488.76

Finding the Fourth Proportional to 80,086.11, 120,137.33 and 27,488.76

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Solution

The fourth proportional to 80,086.11, 120,137.33 and 27,488.76 is: 41,235.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,086.11 : 120,137.33 = 27,488.76 : x
  2. Step 2: Convert to fraction form
    80,086.11/120,137.33 = 27,488.76/x
  3. Step 3: Cross multiply
    80,086.11x = 120,137.33 × 27,488.76
  4. Step 4: Simplify right side
    80,086.11x = 3,302,426,231.41
  5. Step 5: Solve for x
    x = 3,302,426,231.41/80,086.11
  6. Step 6: Final answer
    x = 41,235.94

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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.