Home / 80,806.37-121,191.32-30,868.65

Finding the Fourth Proportional to 80,806.37, 121,191.32 and 30,868.65

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Solution

The fourth proportional to 80,806.37, 121,191.32 and 30,868.65 is: 46,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,806.37 : 121,191.32 = 30,868.65 : x
  2. Step 2: Convert to fraction form
    80,806.37/121,191.32 = 30,868.65/x
  3. Step 3: Cross multiply
    80,806.37x = 121,191.32 × 30,868.65
  4. Step 4: Simplify right side
    80,806.37x = 3,741,012,517.29
  5. Step 5: Solve for x
    x = 3,741,012,517.29/80,806.37
  6. Step 6: Final answer
    x = 46,296.01

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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.