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Finding the Fourth Proportional to 66,689.88, 92,028.62 and 36,469.34

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Solution

The fourth proportional to 66,689.88, 92,028.62 and 36,469.34 is: 50,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,689.88 : 92,028.62 = 36,469.34 : x
  2. Step 2: Convert to fraction form
    66,689.88/92,028.62 = 36,469.34/x
  3. Step 3: Cross multiply
    66,689.88x = 92,028.62 × 36,469.34
  4. Step 4: Simplify right side
    66,689.88x = 3,356,222,390.02
  5. Step 5: Solve for x
    x = 3,356,222,390.02/66,689.88
  6. Step 6: Final answer
    x = 50,325.81

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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.