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Finding the Fourth Proportional to 68,314.48, 102,472.20 and 21,571.12

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Solution

The fourth proportional to 68,314.48, 102,472.20 and 21,571.12 is: 32,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,314.48 : 102,472.20 = 21,571.12 : x
  2. Step 2: Convert to fraction form
    68,314.48/102,472.20 = 21,571.12/x
  3. Step 3: Cross multiply
    68,314.48x = 102,472.20 × 21,571.12
  4. Step 4: Simplify right side
    68,314.48x = 2,210,440,122.86
  5. Step 5: Solve for x
    x = 2,210,440,122.86/68,314.48
  6. Step 6: Final answer
    x = 32,356.83

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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.