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Finding the Fourth Proportional to 68,086.72, 102,080.88 and 45,844.96

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Solution

The fourth proportional to 68,086.72, 102,080.88 and 45,844.96 is: 68,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,086.72 : 102,080.88 = 45,844.96 : x
  2. Step 2: Convert to fraction form
    68,086.72/102,080.88 = 45,844.96/x
  3. Step 3: Cross multiply
    68,086.72x = 102,080.88 × 45,844.96
  4. Step 4: Simplify right side
    68,086.72x = 4,679,893,860.36
  5. Step 5: Solve for x
    x = 4,679,893,860.36/68,086.72
  6. Step 6: Final answer
    x = 68,734.31

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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.