Home / 43,408.92-65,046-30,107.88

Finding the Fourth Proportional to 43,408.92, 65,046 and 30,107.88

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Solution

The fourth proportional to 43,408.92, 65,046 and 30,107.88 is: 45,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.92 : 65,046 = 30,107.88 : x
  2. Step 2: Convert to fraction form
    43,408.92/65,046 = 30,107.88/x
  3. Step 3: Cross multiply
    43,408.92x = 65,046 × 30,107.88
  4. Step 4: Simplify right side
    43,408.92x = 1,958,397,162.48
  5. Step 5: Solve for x
    x = 1,958,397,162.48/43,408.92
  6. Step 6: Final answer
    x = 45,115.09

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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.