Home / 78,334.80-117,517.08-25,759.44

Finding the Fourth Proportional to 78,334.80, 117,517.08 and 25,759.44

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Solution

The fourth proportional to 78,334.80, 117,517.08 and 25,759.44 is: 38,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,334.80 : 117,517.08 = 25,759.44 : x
  2. Step 2: Convert to fraction form
    78,334.80/117,517.08 = 25,759.44/x
  3. Step 3: Cross multiply
    78,334.80x = 117,517.08 × 25,759.44
  4. Step 4: Simplify right side
    78,334.80x = 3,027,174,171.24
  5. Step 5: Solve for x
    x = 3,027,174,171.24/78,334.80
  6. Step 6: Final answer
    x = 38,644.05

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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.