Home / 54,453.52-81,685.32-21,176.09

Finding the Fourth Proportional to 54,453.52, 81,685.32 and 21,176.09

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Solution

The fourth proportional to 54,453.52, 81,685.32 and 21,176.09 is: 31,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.52 : 81,685.32 = 21,176.09 : x
  2. Step 2: Convert to fraction form
    54,453.52/81,685.32 = 21,176.09/x
  3. Step 3: Cross multiply
    54,453.52x = 81,685.32 × 21,176.09
  4. Step 4: Simplify right side
    54,453.52x = 1,729,775,688.00
  5. Step 5: Solve for x
    x = 1,729,775,688.00/54,453.52
  6. Step 6: Final answer
    x = 31,766.09

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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.