Home / 80,756.99-121,149.32-27,443.33

Finding the Fourth Proportional to 80,756.99, 121,149.32 and 27,443.33

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Solution

The fourth proportional to 80,756.99, 121,149.32 and 27,443.33 is: 41,169.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,756.99 : 121,149.32 = 27,443.33 : x
  2. Step 2: Convert to fraction form
    80,756.99/121,149.32 = 27,443.33/x
  3. Step 3: Cross multiply
    80,756.99x = 121,149.32 × 27,443.33
  4. Step 4: Simplify right side
    80,756.99x = 3,324,740,025.07
  5. Step 5: Solve for x
    x = 3,324,740,025.07/80,756.99
  6. Step 6: Final answer
    x = 41,169.69

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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.