Home / 54,049.55-81,087.00-18,511.25

Finding the Fourth Proportional to 54,049.55, 81,087.00 and 18,511.25

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Solution

The fourth proportional to 54,049.55, 81,087.00 and 18,511.25 is: 27,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,049.55 : 81,087.00 = 18,511.25 : x
  2. Step 2: Convert to fraction form
    54,049.55/81,087.00 = 18,511.25/x
  3. Step 3: Cross multiply
    54,049.55x = 81,087.00 × 18,511.25
  4. Step 4: Simplify right side
    54,049.55x = 1,501,021,636.19
  5. Step 5: Solve for x
    x = 1,501,021,636.19/54,049.55
  6. Step 6: Final answer
    x = 27,771.21

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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.