Home / 71,408.36-107,104.44-18,100.10

Finding the Fourth Proportional to 71,408.36, 107,104.44 and 18,100.10

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Solution

The fourth proportional to 71,408.36, 107,104.44 and 18,100.10 is: 27,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,408.36 : 107,104.44 = 18,100.10 : x
  2. Step 2: Convert to fraction form
    71,408.36/107,104.44 = 18,100.10/x
  3. Step 3: Cross multiply
    71,408.36x = 107,104.44 × 18,100.10
  4. Step 4: Simplify right side
    71,408.36x = 1,938,601,074.44
  5. Step 5: Solve for x
    x = 1,938,601,074.44/71,408.36
  6. Step 6: Final answer
    x = 27,148.10

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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.