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Finding the Fourth Proportional to 54,464.30, 81,696.45 and 43,310.60

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Solution

The fourth proportional to 54,464.30, 81,696.45 and 43,310.60 is: 64,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,464.30 : 81,696.45 = 43,310.60 : x
  2. Step 2: Convert to fraction form
    54,464.30/81,696.45 = 43,310.60/x
  3. Step 3: Cross multiply
    54,464.30x = 81,696.45 × 43,310.60
  4. Step 4: Simplify right side
    54,464.30x = 3,538,322,267.37
  5. Step 5: Solve for x
    x = 3,538,322,267.37/54,464.30
  6. Step 6: Final answer
    x = 64,965.90

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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.