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Finding the Fourth Proportional to 79,149.69, 118,727.82 and 22,989.78

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Solution

The fourth proportional to 79,149.69, 118,727.82 and 22,989.78 is: 34,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149.69 : 118,727.82 = 22,989.78 : x
  2. Step 2: Convert to fraction form
    79,149.69/118,727.82 = 22,989.78/x
  3. Step 3: Cross multiply
    79,149.69x = 118,727.82 × 22,989.78
  4. Step 4: Simplify right side
    79,149.69x = 2,729,526,461.68
  5. Step 5: Solve for x
    x = 2,729,526,461.68/79,149.69
  6. Step 6: Final answer
    x = 34,485.62

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1.5x scale

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.