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Finding the Fourth Proportional to 79,797.78, 119,615.89 and 51,735.66

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Solution

The fourth proportional to 79,797.78, 119,615.89 and 51,735.66 is: 77,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.78 : 119,615.89 = 51,735.66 : x
  2. Step 2: Convert to fraction form
    79,797.78/119,615.89 = 51,735.66/x
  3. Step 3: Cross multiply
    79,797.78x = 119,615.89 × 51,735.66
  4. Step 4: Simplify right side
    79,797.78x = 6,188,407,015.64
  5. Step 5: Solve for x
    x = 6,188,407,015.64/79,797.78
  6. Step 6: Final answer
    x = 77,551.12

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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.