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Finding the Fourth Proportional to 66,166.54, 91,313.91 and 37,871.58

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Solution

The fourth proportional to 66,166.54, 91,313.91 and 37,871.58 is: 52,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,166.54 : 91,313.91 = 37,871.58 : x
  2. Step 2: Convert to fraction form
    66,166.54/91,313.91 = 37,871.58/x
  3. Step 3: Cross multiply
    66,166.54x = 91,313.91 × 37,871.58
  4. Step 4: Simplify right side
    66,166.54x = 3,458,202,047.68
  5. Step 5: Solve for x
    x = 3,458,202,047.68/66,166.54
  6. Step 6: Final answer
    x = 52,265.12

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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.