Home / 80,198.51-120,297.15-21,033.27

Finding the Fourth Proportional to 80,198.51, 120,297.15 and 21,033.27

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Solution

The fourth proportional to 80,198.51, 120,297.15 and 21,033.27 is: 31,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,198.51 : 120,297.15 = 21,033.27 : x
  2. Step 2: Convert to fraction form
    80,198.51/120,297.15 = 21,033.27/x
  3. Step 3: Cross multiply
    80,198.51x = 120,297.15 × 21,033.27
  4. Step 4: Simplify right side
    80,198.51x = 2,530,242,436.18
  5. Step 5: Solve for x
    x = 2,530,242,436.18/80,198.51
  6. Step 6: Final answer
    x = 31,549.75

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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.