Home / 80,286.26-120,391.68-46,561.86

Finding the Fourth Proportional to 80,286.26, 120,391.68 and 46,561.86

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Solution

The fourth proportional to 80,286.26, 120,391.68 and 46,561.86 is: 69,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,286.26 : 120,391.68 = 46,561.86 : x
  2. Step 2: Convert to fraction form
    80,286.26/120,391.68 = 46,561.86/x
  3. Step 3: Cross multiply
    80,286.26x = 120,391.68 × 46,561.86
  4. Step 4: Simplify right side
    80,286.26x = 5,605,660,549.32
  5. Step 5: Solve for x
    x = 5,605,660,549.32/80,286.26
  6. Step 6: Final answer
    x = 69,820.92

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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.