Home / 80,409.09-110,891.92-50,197.21

Finding the Fourth Proportional to 80,409.09, 110,891.92 and 50,197.21

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Solution

The fourth proportional to 80,409.09, 110,891.92 and 50,197.21 is: 69,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409.09 : 110,891.92 = 50,197.21 : x
  2. Step 2: Convert to fraction form
    80,409.09/110,891.92 = 50,197.21/x
  3. Step 3: Cross multiply
    80,409.09x = 110,891.92 × 50,197.21
  4. Step 4: Simplify right side
    80,409.09x = 5,566,464,686.94
  5. Step 5: Solve for x
    x = 5,566,464,686.94/80,409.09
  6. Step 6: Final answer
    x = 69,226.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.