Home / 87,661,996.80-120,977,121.60-48,503,136.48

Finding the Fourth Proportional to 87,661,996.80, 120,977,121.60 and 48,503,136.48

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Solution

The fourth proportional to 87,661,996.80, 120,977,121.60 and 48,503,136.48 is: 66,936,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,661,996.80 : 120,977,121.60 = 48,503,136.48 : x
  2. Step 2: Convert to fraction form
    87,661,996.80/120,977,121.60 = 48,503,136.48/x
  3. Step 3: Cross multiply
    87,661,996.80x = 120,977,121.60 × 48,503,136.48
  4. Step 4: Simplify right side
    87,661,996.80x = 5,867,769,839,922,355
  5. Step 5: Solve for x
    x = 5,867,769,839,922,355/87,661,996.80
  6. Step 6: Final answer
    x = 66,936,301.41

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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.