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Finding the Fourth Proportional to 66,072.57, 91,183.82 and 37,393.71

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Solution

The fourth proportional to 66,072.57, 91,183.82 and 37,393.71 is: 51,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.57 : 91,183.82 = 37,393.71 : x
  2. Step 2: Convert to fraction form
    66,072.57/91,183.82 = 37,393.71/x
  3. Step 3: Cross multiply
    66,072.57x = 91,183.82 × 37,393.71
  4. Step 4: Simplify right side
    66,072.57x = 3,409,701,321.77
  5. Step 5: Solve for x
    x = 3,409,701,321.77/66,072.57
  6. Step 6: Final answer
    x = 51,605.40

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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.