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Finding the Fourth Proportional to 79,224, 118,687.68 and 39,734.88

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Solution

The fourth proportional to 79,224, 118,687.68 and 39,734.88 is: 59,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,224 : 118,687.68 = 39,734.88 : x
  2. Step 2: Convert to fraction form
    79,224/118,687.68 = 39,734.88/x
  3. Step 3: Cross multiply
    79,224x = 118,687.68 × 39,734.88
  4. Step 4: Simplify right side
    79,224x = 4,716,040,722.28
  5. Step 5: Solve for x
    x = 4,716,040,722.28/79,224
  6. Step 6: Final answer
    x = 59,527.93

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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.