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Finding the Fourth Proportional to 61,292.25, 91,938.38 and 19,739.25

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Solution

The fourth proportional to 61,292.25, 91,938.38 and 19,739.25 is: 29,608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,292.25 : 91,938.38 = 19,739.25 : x
  2. Step 2: Convert to fraction form
    61,292.25/91,938.38 = 19,739.25/x
  3. Step 3: Cross multiply
    61,292.25x = 91,938.38 × 19,739.25
  4. Step 4: Simplify right side
    61,292.25x = 1,814,794,568.72
  5. Step 5: Solve for x
    x = 1,814,794,568.72/61,292.25
  6. Step 6: Final answer
    x = 29,608.88

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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.