Home / 71,418.36-107,119.44-18,110.10

Finding the Fourth Proportional to 71,418.36, 107,119.44 and 18,110.10

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Solution

The fourth proportional to 71,418.36, 107,119.44 and 18,110.10 is: 27,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.36 : 107,119.44 = 18,110.10 : x
  2. Step 2: Convert to fraction form
    71,418.36/107,119.44 = 18,110.10/x
  3. Step 3: Cross multiply
    71,418.36x = 107,119.44 × 18,110.10
  4. Step 4: Simplify right side
    71,418.36x = 1,939,943,770.34
  5. Step 5: Solve for x
    x = 1,939,943,770.34/71,418.36
  6. Step 6: Final answer
    x = 27,163.10

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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.