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Finding the Fourth Proportional to 71,486.38, 107,188.53 and 27,084.84

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Solution

The fourth proportional to 71,486.38, 107,188.53 and 27,084.84 is: 40,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,486.38 : 107,188.53 = 27,084.84 : x
  2. Step 2: Convert to fraction form
    71,486.38/107,188.53 = 27,084.84/x
  3. Step 3: Cross multiply
    71,486.38x = 107,188.53 × 27,084.84
  4. Step 4: Simplify right side
    71,486.38x = 2,903,184,184.89
  5. Step 5: Solve for x
    x = 2,903,184,184.89/71,486.38
  6. Step 6: Final answer
    x = 40,611.71

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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.