Home / 68,688.30-103,090.05-33,657.90

Finding the Fourth Proportional to 68,688.30, 103,090.05 and 33,657.90

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Solution

The fourth proportional to 68,688.30, 103,090.05 and 33,657.90 is: 50,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688.30 : 103,090.05 = 33,657.90 : x
  2. Step 2: Convert to fraction form
    68,688.30/103,090.05 = 33,657.90/x
  3. Step 3: Cross multiply
    68,688.30x = 103,090.05 × 33,657.90
  4. Step 4: Simplify right side
    68,688.30x = 3,469,794,593.90
  5. Step 5: Solve for x
    x = 3,469,794,593.90/68,688.30
  6. Step 6: Final answer
    x = 50,515.07

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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.