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Finding the Fourth Proportional to 54,605.80, 81,912.42 and 18,567.58

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Solution

The fourth proportional to 54,605.80, 81,912.42 and 18,567.58 is: 27,852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,605.80 : 81,912.42 = 18,567.58 : x
  2. Step 2: Convert to fraction form
    54,605.80/81,912.42 = 18,567.58/x
  3. Step 3: Cross multiply
    54,605.80x = 81,912.42 × 18,567.58
  4. Step 4: Simplify right side
    54,605.80x = 1,520,915,411.34
  5. Step 5: Solve for x
    x = 1,520,915,411.34/54,605.80
  6. Step 6: Final answer
    x = 27,852.63

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1.5x scale

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.