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Finding the Fourth Proportional to 79,255.66, 109,384 and 49,050.70

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Solution

The fourth proportional to 79,255.66, 109,384 and 49,050.70 is: 67,696.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,255.66 : 109,384 = 49,050.70 : x
  2. Step 2: Convert to fraction form
    79,255.66/109,384 = 49,050.70/x
  3. Step 3: Cross multiply
    79,255.66x = 109,384 × 49,050.70
  4. Step 4: Simplify right side
    79,255.66x = 5,365,361,768.80
  5. Step 5: Solve for x
    x = 5,365,361,768.80/79,255.66
  6. Step 6: Final answer
    x = 67,696.89

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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.