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Finding the Fourth Proportional to 79,194.70, 109,288.68 and 47,363.60

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Solution

The fourth proportional to 79,194.70, 109,288.68 and 47,363.60 is: 65,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194.70 : 109,288.68 = 47,363.60 : x
  2. Step 2: Convert to fraction form
    79,194.70/109,288.68 = 47,363.60/x
  3. Step 3: Cross multiply
    79,194.70x = 109,288.68 × 47,363.60
  4. Step 4: Simplify right side
    79,194.70x = 5,176,305,050.83
  5. Step 5: Solve for x
    x = 5,176,305,050.83/79,194.70
  6. Step 6: Final answer
    x = 65,361.76

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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.