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Finding the Fourth Proportional to 68,907.89, 95,119.20 and 67,011.87

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Solution

The fourth proportional to 68,907.89, 95,119.20 and 67,011.87 is: 92,501.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,907.89 : 95,119.20 = 67,011.87 : x
  2. Step 2: Convert to fraction form
    68,907.89/95,119.20 = 67,011.87/x
  3. Step 3: Cross multiply
    68,907.89x = 95,119.20 × 67,011.87
  4. Step 4: Simplify right side
    68,907.89x = 6,374,115,464.90
  5. Step 5: Solve for x
    x = 6,374,115,464.90/68,907.89
  6. Step 6: Final answer
    x = 92,501.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.