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Finding the Fourth Proportional to 66,714.90, 100,063.70 and 25,156.50

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Solution

The fourth proportional to 66,714.90, 100,063.70 and 25,156.50 is: 37,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,714.90 : 100,063.70 = 25,156.50 : x
  2. Step 2: Convert to fraction form
    66,714.90/100,063.70 = 25,156.50/x
  3. Step 3: Cross multiply
    66,714.90x = 100,063.70 × 25,156.50
  4. Step 4: Simplify right side
    66,714.90x = 2,517,252,469.05
  5. Step 5: Solve for x
    x = 2,517,252,469.05/66,714.90
  6. Step 6: Final answer
    x = 37,731.49

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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.