Home / 66,743.28-100,120.72-25,190.64

Finding the Fourth Proportional to 66,743.28, 100,120.72 and 25,190.64

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Solution

The fourth proportional to 66,743.28, 100,120.72 and 25,190.64 is: 37,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,743.28 : 100,120.72 = 25,190.64 : x
  2. Step 2: Convert to fraction form
    66,743.28/100,120.72 = 25,190.64/x
  3. Step 3: Cross multiply
    66,743.28x = 100,120.72 × 25,190.64
  4. Step 4: Simplify right side
    66,743.28x = 2,522,105,014.06
  5. Step 5: Solve for x
    x = 2,522,105,014.06/66,743.28
  6. Step 6: Final answer
    x = 37,788.15

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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.