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Finding the Fourth Proportional to 66,843.90, 100,103.85 and 35,610.30

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Solution

The fourth proportional to 66,843.90, 100,103.85 and 35,610.30 is: 53,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,843.90 : 100,103.85 = 35,610.30 : x
  2. Step 2: Convert to fraction form
    66,843.90/100,103.85 = 35,610.30/x
  3. Step 3: Cross multiply
    66,843.90x = 100,103.85 × 35,610.30
  4. Step 4: Simplify right side
    66,843.90x = 3,564,728,129.66
  5. Step 5: Solve for x
    x = 3,564,728,129.66/66,843.90
  6. Step 6: Final answer
    x = 53,329.15

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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.