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Finding the Fourth Proportional to 54,605.93, 81,912.60 and 18,567.71

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Solution

The fourth proportional to 54,605.93, 81,912.60 and 18,567.71 is: 27,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,605.93 : 81,912.60 = 18,567.71 : x
  2. Step 2: Convert to fraction form
    54,605.93/81,912.60 = 18,567.71/x
  3. Step 3: Cross multiply
    54,605.93x = 81,912.60 × 18,567.71
  4. Step 4: Simplify right side
    54,605.93x = 1,520,929,147.71
  5. Step 5: Solve for x
    x = 1,520,929,147.71/54,605.93
  6. Step 6: Final answer
    x = 27,852.82

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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.