Home / 80,965.62-121,393.14-36,568.20

Finding the Fourth Proportional to 80,965.62, 121,393.14 and 36,568.20

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Solution

The fourth proportional to 80,965.62, 121,393.14 and 36,568.20 is: 54,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.62 : 121,393.14 = 36,568.20 : x
  2. Step 2: Convert to fraction form
    80,965.62/121,393.14 = 36,568.20/x
  3. Step 3: Cross multiply
    80,965.62x = 121,393.14 × 36,568.20
  4. Step 4: Simplify right side
    80,965.62x = 4,439,128,622.15
  5. Step 5: Solve for x
    x = 4,439,128,622.15/80,965.62
  6. Step 6: Final answer
    x = 54,827.33

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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.