Home / 79,115.57-109,175.26-43,298.65

Finding the Fourth Proportional to 79,115.57, 109,175.26 and 43,298.65

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Solution

The fourth proportional to 79,115.57, 109,175.26 and 43,298.65 is: 59,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.57 : 109,175.26 = 43,298.65 : x
  2. Step 2: Convert to fraction form
    79,115.57/109,175.26 = 43,298.65/x
  3. Step 3: Cross multiply
    79,115.57x = 109,175.26 × 43,298.65
  4. Step 4: Simplify right side
    79,115.57x = 4,727,141,480.81
  5. Step 5: Solve for x
    x = 4,727,141,480.81/79,115.57
  6. Step 6: Final answer
    x = 59,749.83

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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.