Home / 80,839.33-121,217.42-43,430.92

Finding the Fourth Proportional to 80,839.33, 121,217.42 and 43,430.92

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Solution

The fourth proportional to 80,839.33, 121,217.42 and 43,430.92 is: 65,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,839.33 : 121,217.42 = 43,430.92 : x
  2. Step 2: Convert to fraction form
    80,839.33/121,217.42 = 43,430.92/x
  3. Step 3: Cross multiply
    80,839.33x = 121,217.42 × 43,430.92
  4. Step 4: Simplify right side
    80,839.33x = 5,264,583,853.47
  5. Step 5: Solve for x
    x = 5,264,583,853.47/80,839.33
  6. Step 6: Final answer
    x = 65,124.04

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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.