Home / 68,664.92-102,971.46-31,703

Finding the Fourth Proportional to 68,664.92, 102,971.46 and 31,703

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Solution

The fourth proportional to 68,664.92, 102,971.46 and 31,703 is: 47,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,664.92 : 102,971.46 = 31,703 : x
  2. Step 2: Convert to fraction form
    68,664.92/102,971.46 = 31,703/x
  3. Step 3: Cross multiply
    68,664.92x = 102,971.46 × 31,703
  4. Step 4: Simplify right side
    68,664.92x = 3,264,504,196.38
  5. Step 5: Solve for x
    x = 3,264,504,196.38/68,664.92
  6. Step 6: Final answer
    x = 47,542.53

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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.