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Finding the Fourth Proportional to 66,394.34, 91,624.20 and 36,179.68

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Solution

The fourth proportional to 66,394.34, 91,624.20 and 36,179.68 is: 49,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,394.34 : 91,624.20 = 36,179.68 : x
  2. Step 2: Convert to fraction form
    66,394.34/91,624.20 = 36,179.68/x
  3. Step 3: Cross multiply
    66,394.34x = 91,624.20 × 36,179.68
  4. Step 4: Simplify right side
    66,394.34x = 3,314,933,778.14
  5. Step 5: Solve for x
    x = 3,314,933,778.14/66,394.34
  6. Step 6: Final answer
    x = 49,927.96

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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.