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Finding the Fourth Proportional to 66,444.71, 91,692 and 36,230.09

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Solution

The fourth proportional to 66,444.71, 91,692 and 36,230.09 is: 49,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444.71 : 91,692 = 36,230.09 : x
  2. Step 2: Convert to fraction form
    66,444.71/91,692 = 36,230.09/x
  3. Step 3: Cross multiply
    66,444.71x = 91,692 × 36,230.09
  4. Step 4: Simplify right side
    66,444.71x = 3,322,008,953.82
  5. Step 5: Solve for x
    x = 3,322,008,953.82/66,444.71
  6. Step 6: Final answer
    x = 49,996.59

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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.