Home / 80,371.85-120,552.91-35,986.68

Finding the Fourth Proportional to 80,371.85, 120,552.91 and 35,986.68

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Solution

The fourth proportional to 80,371.85, 120,552.91 and 35,986.68 is: 53,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,371.85 : 120,552.91 = 35,986.68 : x
  2. Step 2: Convert to fraction form
    80,371.85/120,552.91 = 35,986.68/x
  3. Step 3: Cross multiply
    80,371.85x = 120,552.91 × 35,986.68
  4. Step 4: Simplify right side
    80,371.85x = 4,338,298,905.27
  5. Step 5: Solve for x
    x = 4,338,298,905.27/80,371.85
  6. Step 6: Final answer
    x = 53,977.84

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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.