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Finding the Fourth Proportional to 68,511.35, 102,621.02 and 32,920.35

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Solution

The fourth proportional to 68,511.35, 102,621.02 and 32,920.35 is: 49,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511.35 : 102,621.02 = 32,920.35 : x
  2. Step 2: Convert to fraction form
    68,511.35/102,621.02 = 32,920.35/x
  3. Step 3: Cross multiply
    68,511.35x = 102,621.02 × 32,920.35
  4. Step 4: Simplify right side
    68,511.35x = 3,378,319,731.16
  5. Step 5: Solve for x
    x = 3,378,319,731.16/68,511.35
  6. Step 6: Final answer
    x = 49,310.37

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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.