Home / 68,579.60-102,876.96-21,821.56

Finding the Fourth Proportional to 68,579.60, 102,876.96 and 21,821.56

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Solution

The fourth proportional to 68,579.60, 102,876.96 and 21,821.56 is: 32,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,579.60 : 102,876.96 = 21,821.56 : x
  2. Step 2: Convert to fraction form
    68,579.60/102,876.96 = 21,821.56/x
  3. Step 3: Cross multiply
    68,579.60x = 102,876.96 × 21,821.56
  4. Step 4: Simplify right side
    68,579.60x = 2,244,935,755.26
  5. Step 5: Solve for x
    x = 2,244,935,755.26/68,579.60
  6. Step 6: Final answer
    x = 32,734.75

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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.