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Finding the Fourth Proportional to 66,821.64, 100,232.46 and 62,392.97

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Solution

The fourth proportional to 66,821.64, 100,232.46 and 62,392.97 is: 93,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.64 : 100,232.46 = 62,392.97 : x
  2. Step 2: Convert to fraction form
    66,821.64/100,232.46 = 62,392.97/x
  3. Step 3: Cross multiply
    66,821.64x = 100,232.46 × 62,392.97
  4. Step 4: Simplify right side
    66,821.64x = 6,253,800,368.64
  5. Step 5: Solve for x
    x = 6,253,800,368.64/66,821.64
  6. Step 6: Final answer
    x = 93,589.45

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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.