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Finding the Fourth Proportional to 68,692.76, 95,280.98 and 66,871.88

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Solution

The fourth proportional to 68,692.76, 95,280.98 and 66,871.88 is: 92,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,692.76 : 95,280.98 = 66,871.88 : x
  2. Step 2: Convert to fraction form
    68,692.76/95,280.98 = 66,871.88/x
  3. Step 3: Cross multiply
    68,692.76x = 95,280.98 × 66,871.88
  4. Step 4: Simplify right side
    68,692.76x = 6,371,618,260.84
  5. Step 5: Solve for x
    x = 6,371,618,260.84/68,692.76
  6. Step 6: Final answer
    x = 92,755.31

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.