Home / 68,153.28-102,233.52-21,409.80

Finding the Fourth Proportional to 68,153.28, 102,233.52 and 21,409.80

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Solution

The fourth proportional to 68,153.28, 102,233.52 and 21,409.80 is: 32,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,153.28 : 102,233.52 = 21,409.80 : x
  2. Step 2: Convert to fraction form
    68,153.28/102,233.52 = 21,409.80/x
  3. Step 3: Cross multiply
    68,153.28x = 102,233.52 × 21,409.80
  4. Step 4: Simplify right side
    68,153.28x = 2,188,799,216.50
  5. Step 5: Solve for x
    x = 2,188,799,216.50/68,153.28
  6. Step 6: Final answer
    x = 32,115.83

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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.