Home / 71,144.07-106,716.09-18,553.41

Finding the Fourth Proportional to 71,144.07, 106,716.09 and 18,553.41

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Solution

The fourth proportional to 71,144.07, 106,716.09 and 18,553.41 is: 27,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,144.07 : 106,716.09 = 18,553.41 : x
  2. Step 2: Convert to fraction form
    71,144.07/106,716.09 = 18,553.41/x
  3. Step 3: Cross multiply
    71,144.07x = 106,716.09 × 18,553.41
  4. Step 4: Simplify right side
    71,144.07x = 1,979,947,371.37
  5. Step 5: Solve for x
    x = 1,979,947,371.37/71,144.07
  6. Step 6: Final answer
    x = 27,830.11

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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.