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Finding the Fourth Proportional to 66,283.52, 99,440.85 and 21,910.27

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Solution

The fourth proportional to 66,283.52, 99,440.85 and 21,910.27 is: 32,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,283.52 : 99,440.85 = 21,910.27 : x
  2. Step 2: Convert to fraction form
    66,283.52/99,440.85 = 21,910.27/x
  3. Step 3: Cross multiply
    66,283.52x = 99,440.85 × 21,910.27
  4. Step 4: Simplify right side
    66,283.52x = 2,178,775,872.53
  5. Step 5: Solve for x
    x = 2,178,775,872.53/66,283.52
  6. Step 6: Final answer
    x = 32,870.55

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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.