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Finding the Fourth Proportional to 66,700.68, 100,003.83 and 33,396.86

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Solution

The fourth proportional to 66,700.68, 100,003.83 and 33,396.86 is: 50,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.68 : 100,003.83 = 33,396.86 : x
  2. Step 2: Convert to fraction form
    66,700.68/100,003.83 = 33,396.86/x
  3. Step 3: Cross multiply
    66,700.68x = 100,003.83 × 33,396.86
  4. Step 4: Simplify right side
    66,700.68x = 3,339,813,409.95
  5. Step 5: Solve for x
    x = 3,339,813,409.95/66,700.68
  6. Step 6: Final answer
    x = 50,071.65

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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.