Home / 54,468.30-81,641.70-21,177.30

Finding the Fourth Proportional to 54,468.30, 81,641.70 and 21,177.30

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Solution

The fourth proportional to 54,468.30, 81,641.70 and 21,177.30 is: 31,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,468.30 : 81,641.70 = 21,177.30 : x
  2. Step 2: Convert to fraction form
    54,468.30/81,641.70 = 21,177.30/x
  3. Step 3: Cross multiply
    54,468.30x = 81,641.70 × 21,177.30
  4. Step 4: Simplify right side
    54,468.30x = 1,728,950,773.41
  5. Step 5: Solve for x
    x = 1,728,950,773.41/54,468.30
  6. Step 6: Final answer
    x = 31,742.33

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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.