Home / 78,183.54-117,256.68-30,796.92

Finding the Fourth Proportional to 78,183.54, 117,256.68 and 30,796.92

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Solution

The fourth proportional to 78,183.54, 117,256.68 and 30,796.92 is: 46,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,183.54 : 117,256.68 = 30,796.92 : x
  2. Step 2: Convert to fraction form
    78,183.54/117,256.68 = 30,796.92/x
  3. Step 3: Cross multiply
    78,183.54x = 117,256.68 × 30,796.92
  4. Step 4: Simplify right side
    78,183.54x = 3,611,144,593.43
  5. Step 5: Solve for x
    x = 3,611,144,593.43/78,183.54
  6. Step 6: Final answer
    x = 46,188.04

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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.