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Finding the Fourth Proportional to 54,791.08, 82,186.64 and 13,238.08

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Solution

The fourth proportional to 54,791.08, 82,186.64 and 13,238.08 is: 19,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,791.08 : 82,186.64 = 13,238.08 : x
  2. Step 2: Convert to fraction form
    54,791.08/82,186.64 = 13,238.08/x
  3. Step 3: Cross multiply
    54,791.08x = 82,186.64 × 13,238.08
  4. Step 4: Simplify right side
    54,791.08x = 1,087,993,315.25
  5. Step 5: Solve for x
    x = 1,087,993,315.25/54,791.08
  6. Step 6: Final answer
    x = 19,857.12

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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.