Home / 68,319.05-102,489.44-28,876.50

Finding the Fourth Proportional to 68,319.05, 102,489.44 and 28,876.50

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Solution

The fourth proportional to 68,319.05, 102,489.44 and 28,876.50 is: 43,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,319.05 : 102,489.44 = 28,876.50 : x
  2. Step 2: Convert to fraction form
    68,319.05/102,489.44 = 28,876.50/x
  3. Step 3: Cross multiply
    68,319.05x = 102,489.44 × 28,876.50
  4. Step 4: Simplify right side
    68,319.05x = 2,959,536,169.78
  5. Step 5: Solve for x
    x = 2,959,536,169.78/68,319.05
  6. Step 6: Final answer
    x = 43,319.34

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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.