Home / 68,912.12-103,302.56-22,132.19

Finding the Fourth Proportional to 68,912.12, 103,302.56 and 22,132.19

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Solution

The fourth proportional to 68,912.12, 103,302.56 and 22,132.19 is: 33,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,912.12 : 103,302.56 = 22,132.19 : x
  2. Step 2: Convert to fraction form
    68,912.12/103,302.56 = 22,132.19/x
  3. Step 3: Cross multiply
    68,912.12x = 103,302.56 × 22,132.19
  4. Step 4: Simplify right side
    68,912.12x = 2,286,311,774.75
  5. Step 5: Solve for x
    x = 2,286,311,774.75/68,912.12
  6. Step 6: Final answer
    x = 33,177.21

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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.