Home / 69,310.20-103,899.78-63,147

Finding the Fourth Proportional to 69,310.20, 103,899.78 and 63,147

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Solution

The fourth proportional to 69,310.20, 103,899.78 and 63,147 is: 94,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,310.20 : 103,899.78 = 63,147 : x
  2. Step 2: Convert to fraction form
    69,310.20/103,899.78 = 63,147/x
  3. Step 3: Cross multiply
    69,310.20x = 103,899.78 × 63,147
  4. Step 4: Simplify right side
    69,310.20x = 6,560,959,407.66
  5. Step 5: Solve for x
    x = 6,560,959,407.66/69,310.20
  6. Step 6: Final answer
    x = 94,660.81

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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.