Home / 54,558.47-81,837.78-17,121.41

Finding the Fourth Proportional to 54,558.47, 81,837.78 and 17,121.41

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Solution

The fourth proportional to 54,558.47, 81,837.78 and 17,121.41 is: 25,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,558.47 : 81,837.78 = 17,121.41 : x
  2. Step 2: Convert to fraction form
    54,558.47/81,837.78 = 17,121.41/x
  3. Step 3: Cross multiply
    54,558.47x = 81,837.78 × 17,121.41
  4. Step 4: Simplify right side
    54,558.47x = 1,401,178,184.87
  5. Step 5: Solve for x
    x = 1,401,178,184.87/54,558.47
  6. Step 6: Final answer
    x = 25,682.14

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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.