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Finding the Fourth Proportional to 68,706.28, 103,024 and 40,634.92

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Solution

The fourth proportional to 68,706.28, 103,024 and 40,634.92 is: 60,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.28 : 103,024 = 40,634.92 : x
  2. Step 2: Convert to fraction form
    68,706.28/103,024 = 40,634.92/x
  3. Step 3: Cross multiply
    68,706.28x = 103,024 × 40,634.92
  4. Step 4: Simplify right side
    68,706.28x = 4,186,371,998.08
  5. Step 5: Solve for x
    x = 4,186,371,998.08/68,706.28
  6. Step 6: Final answer
    x = 60,931.43

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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.