Home / 68,915.43-103,371.87-39,270.06

Finding the Fourth Proportional to 68,915.43, 103,371.87 and 39,270.06

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Solution

The fourth proportional to 68,915.43, 103,371.87 and 39,270.06 is: 58,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,915.43 : 103,371.87 = 39,270.06 : x
  2. Step 2: Convert to fraction form
    68,915.43/103,371.87 = 39,270.06/x
  3. Step 3: Cross multiply
    68,915.43x = 103,371.87 × 39,270.06
  4. Step 4: Simplify right side
    68,915.43x = 4,059,419,537.21
  5. Step 5: Solve for x
    x = 4,059,419,537.21/68,915.43
  6. Step 6: Final answer
    x = 58,904.36

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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.