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Finding the Fourth Proportional to 67,941.27, 101,928 and 66,811.62

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Solution

The fourth proportional to 67,941.27, 101,928 and 66,811.62 is: 100,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,941.27 : 101,928 = 66,811.62 : x
  2. Step 2: Convert to fraction form
    67,941.27/101,928 = 66,811.62/x
  3. Step 3: Cross multiply
    67,941.27x = 101,928 × 66,811.62
  4. Step 4: Simplify right side
    67,941.27x = 6,809,974,803.36
  5. Step 5: Solve for x
    x = 6,809,974,803.36/67,941.27
  6. Step 6: Final answer
    x = 100,233.26

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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.