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Finding the Fourth Proportional to 54,011.81, 81,046.88 and 26,309.81

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Solution

The fourth proportional to 54,011.81, 81,046.88 and 26,309.81 is: 39,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.81 : 81,046.88 = 26,309.81 : x
  2. Step 2: Convert to fraction form
    54,011.81/81,046.88 = 26,309.81/x
  3. Step 3: Cross multiply
    54,011.81x = 81,046.88 × 26,309.81
  4. Step 4: Simplify right side
    54,011.81x = 2,132,328,183.62
  5. Step 5: Solve for x
    x = 2,132,328,183.62/54,011.81
  6. Step 6: Final answer
    x = 39,478.92

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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.