Home / 80,722.82-121,083.01-36,318.22

Finding the Fourth Proportional to 80,722.82, 121,083.01 and 36,318.22

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Solution

The fourth proportional to 80,722.82, 121,083.01 and 36,318.22 is: 54,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,722.82 : 121,083.01 = 36,318.22 : x
  2. Step 2: Convert to fraction form
    80,722.82/121,083.01 = 36,318.22/x
  3. Step 3: Cross multiply
    80,722.82x = 121,083.01 × 36,318.22
  4. Step 4: Simplify right side
    80,722.82x = 4,397,519,395.44
  5. Step 5: Solve for x
    x = 4,397,519,395.44/80,722.82
  6. Step 6: Final answer
    x = 54,476.78

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1.5x scale

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.