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Finding the Fourth Proportional to 68,009.20, 101,914.20 and 60,989.20

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Solution

The fourth proportional to 68,009.20, 101,914.20 and 60,989.20 is: 91,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,009.20 : 101,914.20 = 60,989.20 : x
  2. Step 2: Convert to fraction form
    68,009.20/101,914.20 = 60,989.20/x
  3. Step 3: Cross multiply
    68,009.20x = 101,914.20 × 60,989.20
  4. Step 4: Simplify right side
    68,009.20x = 6,215,665,526.64
  5. Step 5: Solve for x
    x = 6,215,665,526.64/68,009.20
  6. Step 6: Final answer
    x = 91,394.48

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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.