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Finding the Fourth Proportional to 66,774.12, 100,144.78 and 22,399.88

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Solution

The fourth proportional to 66,774.12, 100,144.78 and 22,399.88 is: 33,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,774.12 : 100,144.78 = 22,399.88 : x
  2. Step 2: Convert to fraction form
    66,774.12/100,144.78 = 22,399.88/x
  3. Step 3: Cross multiply
    66,774.12x = 100,144.78 × 22,399.88
  4. Step 4: Simplify right side
    66,774.12x = 2,243,231,054.63
  5. Step 5: Solve for x
    x = 2,243,231,054.63/66,774.12
  6. Step 6: Final answer
    x = 33,594.32

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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.