Home / 54,437.24-81,624.07-21,118.37

Finding the Fourth Proportional to 54,437.24, 81,624.07 and 21,118.37

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Solution

The fourth proportional to 54,437.24, 81,624.07 and 21,118.37 is: 31,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,437.24 : 81,624.07 = 21,118.37 : x
  2. Step 2: Convert to fraction form
    54,437.24/81,624.07 = 21,118.37/x
  3. Step 3: Cross multiply
    54,437.24x = 81,624.07 × 21,118.37
  4. Step 4: Simplify right side
    54,437.24x = 1,723,766,850.25
  5. Step 5: Solve for x
    x = 1,723,766,850.25/54,437.24
  6. Step 6: Final answer
    x = 31,665.21

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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.