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Finding the Fourth Proportional to 68,725.01, 103,087.59 and 18,801.41

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Solution

The fourth proportional to 68,725.01, 103,087.59 and 18,801.41 is: 28,202.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,725.01 : 103,087.59 = 18,801.41 : x
  2. Step 2: Convert to fraction form
    68,725.01/103,087.59 = 18,801.41/x
  3. Step 3: Cross multiply
    68,725.01x = 103,087.59 × 18,801.41
  4. Step 4: Simplify right side
    68,725.01x = 1,938,192,045.50
  5. Step 5: Solve for x
    x = 1,938,192,045.50/68,725.01
  6. Step 6: Final answer
    x = 28,202.14

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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.