Home / 54,520.65-81,759.92-21,236.54

Finding the Fourth Proportional to 54,520.65, 81,759.92 and 21,236.54

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Solution

The fourth proportional to 54,520.65, 81,759.92 and 21,236.54 is: 31,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.65 : 81,759.92 = 21,236.54 : x
  2. Step 2: Convert to fraction form
    54,520.65/81,759.92 = 21,236.54/x
  3. Step 3: Cross multiply
    54,520.65x = 81,759.92 × 21,236.54
  4. Step 4: Simplify right side
    54,520.65x = 1,736,297,296.49
  5. Step 5: Solve for x
    x = 1,736,297,296.49/54,520.65
  6. Step 6: Final answer
    x = 31,846.60

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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.