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Finding the Fourth Proportional to 66,427.56, 91,668.56 and 36,211.73

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Solution

The fourth proportional to 66,427.56, 91,668.56 and 36,211.73 is: 49,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427.56 : 91,668.56 = 36,211.73 : x
  2. Step 2: Convert to fraction form
    66,427.56/91,668.56 = 36,211.73/x
  3. Step 3: Cross multiply
    66,427.56x = 91,668.56 × 36,211.73
  4. Step 4: Simplify right side
    66,427.56x = 3,319,476,504.81
  5. Step 5: Solve for x
    x = 3,319,476,504.81/66,427.56
  6. Step 6: Final answer
    x = 49,971.37

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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.