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Finding the Fourth Proportional to 66,404.04, 91,636.60 and 36,190.60

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Solution

The fourth proportional to 66,404.04, 91,636.60 and 36,190.60 is: 49,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404.04 : 91,636.60 = 36,190.60 : x
  2. Step 2: Convert to fraction form
    66,404.04/91,636.60 = 36,190.60/x
  3. Step 3: Cross multiply
    66,404.04x = 91,636.60 × 36,190.60
  4. Step 4: Simplify right side
    66,404.04x = 3,316,383,535.96
  5. Step 5: Solve for x
    x = 3,316,383,535.96/66,404.04
  6. Step 6: Final answer
    x = 49,942.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.