Home / 45,408.08-68,114.68-13,819.17

Finding the Fourth Proportional to 45,408.08, 68,114.68 and 13,819.17

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Solution

The fourth proportional to 45,408.08, 68,114.68 and 13,819.17 is: 20,729.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408.08 : 68,114.68 = 13,819.17 : x
  2. Step 2: Convert to fraction form
    45,408.08/68,114.68 = 13,819.17/x
  3. Step 3: Cross multiply
    45,408.08x = 68,114.68 × 13,819.17
  4. Step 4: Simplify right side
    45,408.08x = 941,288,342.42
  5. Step 5: Solve for x
    x = 941,288,342.42/45,408.08
  6. Step 6: Final answer
    x = 20,729.53

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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.