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Finding the Fourth Proportional to 68,704.76, 94,811.42 and 38,489.99

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Solution

The fourth proportional to 68,704.76, 94,811.42 and 38,489.99 is: 53,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,704.76 : 94,811.42 = 38,489.99 : x
  2. Step 2: Convert to fraction form
    68,704.76/94,811.42 = 38,489.99/x
  3. Step 3: Cross multiply
    68,704.76x = 94,811.42 × 38,489.99
  4. Step 4: Simplify right side
    68,704.76x = 3,649,289,941.18
  5. Step 5: Solve for x
    x = 3,649,289,941.18/68,704.76
  6. Step 6: Final answer
    x = 53,115.54

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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.