Home / 70,942.14-106,438.68-30,398.64

Finding the Fourth Proportional to 70,942.14, 106,438.68 and 30,398.64

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Solution

The fourth proportional to 70,942.14, 106,438.68 and 30,398.64 is: 45,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,942.14 : 106,438.68 = 30,398.64 : x
  2. Step 2: Convert to fraction form
    70,942.14/106,438.68 = 30,398.64/x
  3. Step 3: Cross multiply
    70,942.14x = 106,438.68 × 30,398.64
  4. Step 4: Simplify right side
    70,942.14x = 3,235,591,115.40
  5. Step 5: Solve for x
    x = 3,235,591,115.40/70,942.14
  6. Step 6: Final answer
    x = 45,608.87

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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.