Home / 54,538.30-81,773.94-21,219.56

Finding the Fourth Proportional to 54,538.30, 81,773.94 and 21,219.56

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Solution

The fourth proportional to 54,538.30, 81,773.94 and 21,219.56 is: 31,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,538.30 : 81,773.94 = 21,219.56 : x
  2. Step 2: Convert to fraction form
    54,538.30/81,773.94 = 21,219.56/x
  3. Step 3: Cross multiply
    54,538.30x = 81,773.94 × 21,219.56
  4. Step 4: Simplify right side
    54,538.30x = 1,735,207,026.27
  5. Step 5: Solve for x
    x = 1,735,207,026.27/54,538.30
  6. Step 6: Final answer
    x = 31,816.30

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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.