Home / 79,702.20-119,571.76-27,111.69

Finding the Fourth Proportional to 79,702.20, 119,571.76 and 27,111.69

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Solution

The fourth proportional to 79,702.20, 119,571.76 and 27,111.69 is: 40,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.20 : 119,571.76 = 27,111.69 : x
  2. Step 2: Convert to fraction form
    79,702.20/119,571.76 = 27,111.69/x
  3. Step 3: Cross multiply
    79,702.20x = 119,571.76 × 27,111.69
  4. Step 4: Simplify right side
    79,702.20x = 3,241,792,489.87
  5. Step 5: Solve for x
    x = 3,241,792,489.87/79,702.20
  6. Step 6: Final answer
    x = 40,673.81

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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.