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Finding the Fourth Proportional to 66,501, 91,771.38 and 36,693

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Solution

The fourth proportional to 66,501, 91,771.38 and 36,693 is: 50,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,501 : 91,771.38 = 36,693 : x
  2. Step 2: Convert to fraction form
    66,501/91,771.38 = 36,693/x
  3. Step 3: Cross multiply
    66,501x = 91,771.38 × 36,693
  4. Step 4: Simplify right side
    66,501x = 3,367,367,246.34
  5. Step 5: Solve for x
    x = 3,367,367,246.34/66,501
  6. Step 6: Final answer
    x = 50,636.34

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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.