Home / 68,149.17-102,240.15-28,717.56

Finding the Fourth Proportional to 68,149.17, 102,240.15 and 28,717.56

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Solution

The fourth proportional to 68,149.17, 102,240.15 and 28,717.56 is: 43,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,149.17 : 102,240.15 = 28,717.56 : x
  2. Step 2: Convert to fraction form
    68,149.17/102,240.15 = 28,717.56/x
  3. Step 3: Cross multiply
    68,149.17x = 102,240.15 × 28,717.56
  4. Step 4: Simplify right side
    68,149.17x = 2,936,087,642.03
  5. Step 5: Solve for x
    x = 2,936,087,642.03/68,149.17
  6. Step 6: Final answer
    x = 43,083.25

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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.