Home / 79,623.70-109,884.31-49,418.73

Finding the Fourth Proportional to 79,623.70, 109,884.31 and 49,418.73

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Solution

The fourth proportional to 79,623.70, 109,884.31 and 49,418.73 is: 68,200.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.70 : 109,884.31 = 49,418.73 : x
  2. Step 2: Convert to fraction form
    79,623.70/109,884.31 = 49,418.73/x
  3. Step 3: Cross multiply
    79,623.70x = 109,884.31 × 49,418.73
  4. Step 4: Simplify right side
    79,623.70x = 5,430,342,923.58
  5. Step 5: Solve for x
    x = 5,430,342,923.58/79,623.70
  6. Step 6: Final answer
    x = 68,200.08

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1.5x scale

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.