Home / 68,915.21-103,171.98-51,224.23

Finding the Fourth Proportional to 68,915.21, 103,171.98 and 51,224.23

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Solution

The fourth proportional to 68,915.21, 103,171.98 and 51,224.23 is: 76,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,915.21 : 103,171.98 = 51,224.23 : x
  2. Step 2: Convert to fraction form
    68,915.21/103,171.98 = 51,224.23/x
  3. Step 3: Cross multiply
    68,915.21x = 103,171.98 × 51,224.23
  4. Step 4: Simplify right side
    68,915.21x = 5,284,904,717.22
  5. Step 5: Solve for x
    x = 5,284,904,717.22/68,915.21
  6. Step 6: Final answer
    x = 76,687.06

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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.