Home / 68,911.12-103,301.06-22,131.19

Finding the Fourth Proportional to 68,911.12, 103,301.06 and 22,131.19

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Solution

The fourth proportional to 68,911.12, 103,301.06 and 22,131.19 is: 33,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,911.12 : 103,301.06 = 22,131.19 : x
  2. Step 2: Convert to fraction form
    68,911.12/103,301.06 = 22,131.19/x
  3. Step 3: Cross multiply
    68,911.12x = 103,301.06 × 22,131.19
  4. Step 4: Simplify right side
    68,911.12x = 2,286,175,017.15
  5. Step 5: Solve for x
    x = 2,286,175,017.15/68,911.12
  6. Step 6: Final answer
    x = 33,175.71

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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.