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Finding the Fourth Proportional to 54,266.10, 81,394.02 and 19,203.90

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Solution

The fourth proportional to 54,266.10, 81,394.02 and 19,203.90 is: 28,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,266.10 : 81,394.02 = 19,203.90 : x
  2. Step 2: Convert to fraction form
    54,266.10/81,394.02 = 19,203.90/x
  3. Step 3: Cross multiply
    54,266.10x = 81,394.02 × 19,203.90
  4. Step 4: Simplify right side
    54,266.10x = 1,563,082,620.68
  5. Step 5: Solve for x
    x = 1,563,082,620.68/54,266.10
  6. Step 6: Final answer
    x = 28,804.03

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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.