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Finding the Fourth Proportional to 66,198.60, 99,297.90 and 36,601.20

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Solution

The fourth proportional to 66,198.60, 99,297.90 and 36,601.20 is: 54,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,198.60 : 99,297.90 = 36,601.20 : x
  2. Step 2: Convert to fraction form
    66,198.60/99,297.90 = 36,601.20/x
  3. Step 3: Cross multiply
    66,198.60x = 99,297.90 × 36,601.20
  4. Step 4: Simplify right side
    66,198.60x = 3,634,422,297.48
  5. Step 5: Solve for x
    x = 3,634,422,297.48/66,198.60
  6. Step 6: Final answer
    x = 54,901.80

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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.