Home / 68,091.72-102,153.99-21,344.60

Finding the Fourth Proportional to 68,091.72, 102,153.99 and 21,344.60

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Solution

The fourth proportional to 68,091.72, 102,153.99 and 21,344.60 is: 32,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,091.72 : 102,153.99 = 21,344.60 : x
  2. Step 2: Convert to fraction form
    68,091.72/102,153.99 = 21,344.60/x
  3. Step 3: Cross multiply
    68,091.72x = 102,153.99 × 21,344.60
  4. Step 4: Simplify right side
    68,091.72x = 2,180,436,054.95
  5. Step 5: Solve for x
    x = 2,180,436,054.95/68,091.72
  6. Step 6: Final answer
    x = 32,022.04

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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.