Home / 68,531.26-102,812-29,122.06

Finding the Fourth Proportional to 68,531.26, 102,812 and 29,122.06

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Solution

The fourth proportional to 68,531.26, 102,812 and 29,122.06 is: 43,689.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.26 : 102,812 = 29,122.06 : x
  2. Step 2: Convert to fraction form
    68,531.26/102,812 = 29,122.06/x
  3. Step 3: Cross multiply
    68,531.26x = 102,812 × 29,122.06
  4. Step 4: Simplify right side
    68,531.26x = 2,994,097,232.72
  5. Step 5: Solve for x
    x = 2,994,097,232.72/68,531.26
  6. Step 6: Final answer
    x = 43,689.51

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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.