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Finding the Fourth Proportional to 66,606.41, 91,912.44 and 37,929

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Solution

The fourth proportional to 66,606.41, 91,912.44 and 37,929 is: 52,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,606.41 : 91,912.44 = 37,929 : x
  2. Step 2: Convert to fraction form
    66,606.41/91,912.44 = 37,929/x
  3. Step 3: Cross multiply
    66,606.41x = 91,912.44 × 37,929
  4. Step 4: Simplify right side
    66,606.41x = 3,486,146,936.76
  5. Step 5: Solve for x
    x = 3,486,146,936.76/66,606.41
  6. Step 6: Final answer
    x = 52,339.51

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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.