Home / 54,433.94-81,645.80-18,889.73

Finding the Fourth Proportional to 54,433.94, 81,645.80 and 18,889.73

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Solution

The fourth proportional to 54,433.94, 81,645.80 and 18,889.73 is: 28,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,433.94 : 81,645.80 = 18,889.73 : x
  2. Step 2: Convert to fraction form
    54,433.94/81,645.80 = 18,889.73/x
  3. Step 3: Cross multiply
    54,433.94x = 81,645.80 × 18,889.73
  4. Step 4: Simplify right side
    54,433.94x = 1,542,266,614.96
  5. Step 5: Solve for x
    x = 1,542,266,614.96/54,433.94
  6. Step 6: Final answer
    x = 28,332.82

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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.