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Finding the Fourth Proportional to 66,671.60, 100,007.40 and 49,175.60

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Solution

The fourth proportional to 66,671.60, 100,007.40 and 49,175.60 is: 73,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,671.60 : 100,007.40 = 49,175.60 : x
  2. Step 2: Convert to fraction form
    66,671.60/100,007.40 = 49,175.60/x
  3. Step 3: Cross multiply
    66,671.60x = 100,007.40 × 49,175.60
  4. Step 4: Simplify right side
    66,671.60x = 4,917,923,899.44
  5. Step 5: Solve for x
    x = 4,917,923,899.44/66,671.60
  6. Step 6: Final answer
    x = 73,763.40

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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.