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Finding the Fourth Proportional to 54,043.63, 81,008.93 and 18,493.01

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Solution

The fourth proportional to 54,043.63, 81,008.93 and 18,493.01 is: 27,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,043.63 : 81,008.93 = 18,493.01 : x
  2. Step 2: Convert to fraction form
    54,043.63/81,008.93 = 18,493.01/x
  3. Step 3: Cross multiply
    54,043.63x = 81,008.93 × 18,493.01
  4. Step 4: Simplify right side
    54,043.63x = 1,498,098,952.58
  5. Step 5: Solve for x
    x = 1,498,098,952.58/54,043.63
  6. Step 6: Final answer
    x = 27,720.18

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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.