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Finding the Fourth Proportional to 68,419.44, 102,621.87 and 32,387.31

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Solution

The fourth proportional to 68,419.44, 102,621.87 and 32,387.31 is: 48,577.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,419.44 : 102,621.87 = 32,387.31 : x
  2. Step 2: Convert to fraction form
    68,419.44/102,621.87 = 32,387.31/x
  3. Step 3: Cross multiply
    68,419.44x = 102,621.87 × 32,387.31
  4. Step 4: Simplify right side
    68,419.44x = 3,323,646,316.47
  5. Step 5: Solve for x
    x = 3,323,646,316.47/68,419.44
  6. Step 6: Final answer
    x = 48,577.51

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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.