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Finding the Fourth Proportional to 66,591, 91,895.58 and 36,783

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Solution

The fourth proportional to 66,591, 91,895.58 and 36,783 is: 50,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591 : 91,895.58 = 36,783 : x
  2. Step 2: Convert to fraction form
    66,591/91,895.58 = 36,783/x
  3. Step 3: Cross multiply
    66,591x = 91,895.58 × 36,783
  4. Step 4: Simplify right side
    66,591x = 3,380,195,119.14
  5. Step 5: Solve for x
    x = 3,380,195,119.14/66,591
  6. Step 6: Final answer
    x = 50,760.54

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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.