Home / 68,853.21-103,196.75-35,555.12

Finding the Fourth Proportional to 68,853.21, 103,196.75 and 35,555.12

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Solution

The fourth proportional to 68,853.21, 103,196.75 and 35,555.12 is: 53,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.21 : 103,196.75 = 35,555.12 : x
  2. Step 2: Convert to fraction form
    68,853.21/103,196.75 = 35,555.12/x
  3. Step 3: Cross multiply
    68,853.21x = 103,196.75 × 35,555.12
  4. Step 4: Simplify right side
    68,853.21x = 3,669,172,136.10
  5. Step 5: Solve for x
    x = 3,669,172,136.10/68,853.21
  6. Step 6: Final answer
    x = 53,289.78

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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.