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Finding the Fourth Proportional to 78,884.56, 118,361.52 and 41,435.93

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Solution

The fourth proportional to 78,884.56, 118,361.52 and 41,435.93 is: 62,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,884.56 : 118,361.52 = 41,435.93 : x
  2. Step 2: Convert to fraction form
    78,884.56/118,361.52 = 41,435.93/x
  3. Step 3: Cross multiply
    78,884.56x = 118,361.52 × 41,435.93
  4. Step 4: Simplify right side
    78,884.56x = 4,904,419,657.41
  5. Step 5: Solve for x
    x = 4,904,419,657.41/78,884.56
  6. Step 6: Final answer
    x = 62,172.11

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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.