Home / 68,072.58-102,033.20-51,378.48

Finding the Fourth Proportional to 68,072.58, 102,033.20 and 51,378.48

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Solution

The fourth proportional to 68,072.58, 102,033.20 and 51,378.48 is: 77,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072.58 : 102,033.20 = 51,378.48 : x
  2. Step 2: Convert to fraction form
    68,072.58/102,033.20 = 51,378.48/x
  3. Step 3: Cross multiply
    68,072.58x = 102,033.20 × 51,378.48
  4. Step 4: Simplify right side
    68,072.58x = 5,242,310,853.98
  5. Step 5: Solve for x
    x = 5,242,310,853.98/68,072.58
  6. Step 6: Final answer
    x = 77,010.61

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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.