Home / 77,293.20-115,872.30-29,940.60

Finding the Fourth Proportional to 77,293.20, 115,872.30 and 29,940.60

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Solution

The fourth proportional to 77,293.20, 115,872.30 and 29,940.60 is: 44,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,293.20 : 115,872.30 = 29,940.60 : x
  2. Step 2: Convert to fraction form
    77,293.20/115,872.30 = 29,940.60/x
  3. Step 3: Cross multiply
    77,293.20x = 115,872.30 × 29,940.60
  4. Step 4: Simplify right side
    77,293.20x = 3,469,286,185.38
  5. Step 5: Solve for x
    x = 3,469,286,185.38/77,293.20
  6. Step 6: Final answer
    x = 44,884.75

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1.5x scale

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.