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Finding the Fourth Proportional to 66,566.05, 91,857.72 and 36,345.54

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Solution

The fourth proportional to 66,566.05, 91,857.72 and 36,345.54 is: 50,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,566.05 : 91,857.72 = 36,345.54 : x
  2. Step 2: Convert to fraction form
    66,566.05/91,857.72 = 36,345.54/x
  3. Step 3: Cross multiply
    66,566.05x = 91,857.72 × 36,345.54
  4. Step 4: Simplify right side
    66,566.05x = 3,338,618,436.57
  5. Step 5: Solve for x
    x = 3,338,618,436.57/66,566.05
  6. Step 6: Final answer
    x = 50,154.97

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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.