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Finding the Fourth Proportional to 54,453.42, 81,628.29 and 17,491.50

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Solution

The fourth proportional to 54,453.42, 81,628.29 and 17,491.50 is: 26,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.42 : 81,628.29 = 17,491.50 : x
  2. Step 2: Convert to fraction form
    54,453.42/81,628.29 = 17,491.50/x
  3. Step 3: Cross multiply
    54,453.42x = 81,628.29 × 17,491.50
  4. Step 4: Simplify right side
    54,453.42x = 1,427,801,234.54
  5. Step 5: Solve for x
    x = 1,427,801,234.54/54,453.42
  6. Step 6: Final answer
    x = 26,220.60

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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.