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Finding the Fourth Proportional to 66,051, 91,155.18 and 37,755.96

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Solution

The fourth proportional to 66,051, 91,155.18 and 37,755.96 is: 52,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051 : 91,155.18 = 37,755.96 : x
  2. Step 2: Convert to fraction form
    66,051/91,155.18 = 37,755.96/x
  3. Step 3: Cross multiply
    66,051x = 91,155.18 × 37,755.96
  4. Step 4: Simplify right side
    66,051x = 3,441,651,329.87
  5. Step 5: Solve for x
    x = 3,441,651,329.87/66,051
  6. Step 6: Final answer
    x = 52,105.97

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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.