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Finding the Fourth Proportional to 66,878.78, 100,247.44 and 24,731.78

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Solution

The fourth proportional to 66,878.78, 100,247.44 and 24,731.78 is: 37,071.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878.78 : 100,247.44 = 24,731.78 : x
  2. Step 2: Convert to fraction form
    66,878.78/100,247.44 = 24,731.78/x
  3. Step 3: Cross multiply
    66,878.78x = 100,247.44 × 24,731.78
  4. Step 4: Simplify right side
    66,878.78x = 2,479,297,631.64
  5. Step 5: Solve for x
    x = 2,479,297,631.64/66,878.78
  6. Step 6: Final answer
    x = 37,071.51

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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.