Home / 66,815.14-100,150.26-33,454.78

Finding the Fourth Proportional to 66,815.14, 100,150.26 and 33,454.78

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Solution

The fourth proportional to 66,815.14, 100,150.26 and 33,454.78 is: 50,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,815.14 : 100,150.26 = 33,454.78 : x
  2. Step 2: Convert to fraction form
    66,815.14/100,150.26 = 33,454.78/x
  3. Step 3: Cross multiply
    66,815.14x = 100,150.26 × 33,454.78
  4. Step 4: Simplify right side
    66,815.14x = 3,350,504,915.24
  5. Step 5: Solve for x
    x = 3,350,504,915.24/66,815.14
  6. Step 6: Final answer
    x = 50,145.89

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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.