Home / 78,787.36-118,183.09-22,625.20

Finding the Fourth Proportional to 78,787.36, 118,183.09 and 22,625.20

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Solution

The fourth proportional to 78,787.36, 118,183.09 and 22,625.20 is: 33,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,787.36 : 118,183.09 = 22,625.20 : x
  2. Step 2: Convert to fraction form
    78,787.36/118,183.09 = 22,625.20/x
  3. Step 3: Cross multiply
    78,787.36x = 118,183.09 × 22,625.20
  4. Step 4: Simplify right side
    78,787.36x = 2,673,915,817.25
  5. Step 5: Solve for x
    x = 2,673,915,817.25/78,787.36
  6. Step 6: Final answer
    x = 33,938.39

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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.