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Finding the Fourth Proportional to 68,073.58, 102,034.70 and 51,379.48

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Solution

The fourth proportional to 68,073.58, 102,034.70 and 51,379.48 is: 77,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,073.58 : 102,034.70 = 51,379.48 : x
  2. Step 2: Convert to fraction form
    68,073.58/102,034.70 = 51,379.48/x
  3. Step 3: Cross multiply
    68,073.58x = 102,034.70 × 51,379.48
  4. Step 4: Simplify right side
    68,073.58x = 5,242,489,827.96
  5. Step 5: Solve for x
    x = 5,242,489,827.96/68,073.58
  6. Step 6: Final answer
    x = 77,012.11

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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.