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Finding the Fourth Proportional to 68,676.37, 102,992.71 and 64,193.50

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Solution

The fourth proportional to 68,676.37, 102,992.71 and 64,193.50 is: 96,269.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.37 : 102,992.71 = 64,193.50 : x
  2. Step 2: Convert to fraction form
    68,676.37/102,992.71 = 64,193.50/x
  3. Step 3: Cross multiply
    68,676.37x = 102,992.71 × 64,193.50
  4. Step 4: Simplify right side
    68,676.37x = 6,611,462,786.87
  5. Step 5: Solve for x
    x = 6,611,462,786.87/68,676.37
  6. Step 6: Final answer
    x = 96,269.84

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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.