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Finding the Fourth Proportional to 61,227.73, 91,807.08 and 21,227.95

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Solution

The fourth proportional to 61,227.73, 91,807.08 and 21,227.95 is: 31,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,227.73 : 91,807.08 = 21,227.95 : x
  2. Step 2: Convert to fraction form
    61,227.73/91,807.08 = 21,227.95/x
  3. Step 3: Cross multiply
    61,227.73x = 91,807.08 × 21,227.95
  4. Step 4: Simplify right side
    61,227.73x = 1,948,876,103.89
  5. Step 5: Solve for x
    x = 1,948,876,103.89/61,227.73
  6. Step 6: Final answer
    x = 31,829.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.