Home / 66,921.02-100,396.38-20,170.52

Finding the Fourth Proportional to 66,921.02, 100,396.38 and 20,170.52

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Solution

The fourth proportional to 66,921.02, 100,396.38 and 20,170.52 is: 30,260.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,921.02 : 100,396.38 = 20,170.52 : x
  2. Step 2: Convert to fraction form
    66,921.02/100,396.38 = 20,170.52/x
  3. Step 3: Cross multiply
    66,921.02x = 100,396.38 × 20,170.52
  4. Step 4: Simplify right side
    66,921.02x = 2,025,047,190.72
  5. Step 5: Solve for x
    x = 2,025,047,190.72/66,921.02
  6. Step 6: Final answer
    x = 30,260.26

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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.