Home / 68,022.86-102,034.54-20,638.36

Finding the Fourth Proportional to 68,022.86, 102,034.54 and 20,638.36

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Solution

The fourth proportional to 68,022.86, 102,034.54 and 20,638.36 is: 30,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,022.86 : 102,034.54 = 20,638.36 : x
  2. Step 2: Convert to fraction form
    68,022.86/102,034.54 = 20,638.36/x
  3. Step 3: Cross multiply
    68,022.86x = 102,034.54 × 20,638.36
  4. Step 4: Simplify right side
    68,022.86x = 2,105,825,262.27
  5. Step 5: Solve for x
    x = 2,105,825,262.27/68,022.86
  6. Step 6: Final answer
    x = 30,957.61

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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.