Home / 45,408.26-68,114.94-13,819.34

Finding the Fourth Proportional to 45,408.26, 68,114.94 and 13,819.34

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Solution

The fourth proportional to 45,408.26, 68,114.94 and 13,819.34 is: 20,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408.26 : 68,114.94 = 13,819.34 : x
  2. Step 2: Convert to fraction form
    45,408.26/68,114.94 = 13,819.34/x
  3. Step 3: Cross multiply
    45,408.26x = 68,114.94 × 13,819.34
  4. Step 4: Simplify right side
    45,408.26x = 941,303,174.36
  5. Step 5: Solve for x
    x = 941,303,174.36/45,408.26
  6. Step 6: Final answer
    x = 20,729.78

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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.