Home / 79,609.59-109,815.62-49,749.75

Finding the Fourth Proportional to 79,609.59, 109,815.62 and 49,749.75

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Solution

The fourth proportional to 79,609.59, 109,815.62 and 49,749.75 is: 68,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,609.59 : 109,815.62 = 49,749.75 : x
  2. Step 2: Convert to fraction form
    79,609.59/109,815.62 = 49,749.75/x
  3. Step 3: Cross multiply
    79,609.59x = 109,815.62 × 49,749.75
  4. Step 4: Simplify right side
    79,609.59x = 5,463,299,392.35
  5. Step 5: Solve for x
    x = 5,463,299,392.35/79,609.59
  6. Step 6: Final answer
    x = 68,626.15

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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.