Home / 68,872.96-103,315.20-22,126.72

Finding the Fourth Proportional to 68,872.96, 103,315.20 and 22,126.72

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Solution

The fourth proportional to 68,872.96, 103,315.20 and 22,126.72 is: 33,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,872.96 : 103,315.20 = 22,126.72 : x
  2. Step 2: Convert to fraction form
    68,872.96/103,315.20 = 22,126.72/x
  3. Step 3: Cross multiply
    68,872.96x = 103,315.20 × 22,126.72
  4. Step 4: Simplify right side
    68,872.96x = 2,286,026,502.14
  5. Step 5: Solve for x
    x = 2,286,026,502.14/68,872.96
  6. Step 6: Final answer
    x = 33,191.93

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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.