Home / 70,961.24-106,410.94-20,349.10

Finding the Fourth Proportional to 70,961.24, 106,410.94 and 20,349.10

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Solution

The fourth proportional to 70,961.24, 106,410.94 and 20,349.10 is: 30,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,961.24 : 106,410.94 = 20,349.10 : x
  2. Step 2: Convert to fraction form
    70,961.24/106,410.94 = 20,349.10/x
  3. Step 3: Cross multiply
    70,961.24x = 106,410.94 × 20,349.10
  4. Step 4: Simplify right side
    70,961.24x = 2,165,366,859.15
  5. Step 5: Solve for x
    x = 2,165,366,859.15/70,961.24
  6. Step 6: Final answer
    x = 30,514.78

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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.