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Finding the Fourth Proportional to 79,144, 118,716 and 23,740

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Solution

The fourth proportional to 79,144, 118,716 and 23,740 is: 35,610

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,144 : 118,716 = 23,740 : x
  2. Step 2: Convert to fraction form
    79,144/118,716 = 23,740/x
  3. Step 3: Cross multiply
    79,144x = 118,716 × 23,740
  4. Step 4: Simplify right side
    79,144x = 2,818,317,840
  5. Step 5: Solve for x
    x = 2,818,317,840/79,144
  6. Step 6: Final answer
    x = 35,610

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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.