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Finding the Fourth Proportional to 87,662.10, 131,579.55 and 43,338.90

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Solution

The fourth proportional to 87,662.10, 131,579.55 and 43,338.90 is: 65,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,662.10 : 131,579.55 = 43,338.90 : x
  2. Step 2: Convert to fraction form
    87,662.10/131,579.55 = 43,338.90/x
  3. Step 3: Cross multiply
    87,662.10x = 131,579.55 × 43,338.90
  4. Step 4: Simplify right side
    87,662.10x = 5,702,512,959.50
  5. Step 5: Solve for x
    x = 5,702,512,959.50/87,662.10
  6. Step 6: Final answer
    x = 65,051.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.