Home / 68,524.48-102,638.16-66,851.92

Finding the Fourth Proportional to 68,524.48, 102,638.16 and 66,851.92

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Solution

The fourth proportional to 68,524.48, 102,638.16 and 66,851.92 is: 100,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,524.48 : 102,638.16 = 66,851.92 : x
  2. Step 2: Convert to fraction form
    68,524.48/102,638.16 = 66,851.92/x
  3. Step 3: Cross multiply
    68,524.48x = 102,638.16 × 66,851.92
  4. Step 4: Simplify right side
    68,524.48x = 6,861,558,061.27
  5. Step 5: Solve for x
    x = 6,861,558,061.27/68,524.48
  6. Step 6: Final answer
    x = 100,132.95

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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.