Home / 79,112.91-109,175.46-43,302.81

Finding the Fourth Proportional to 79,112.91, 109,175.46 and 43,302.81

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Solution

The fourth proportional to 79,112.91, 109,175.46 and 43,302.81 is: 59,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,112.91 : 109,175.46 = 43,302.81 : x
  2. Step 2: Convert to fraction form
    79,112.91/109,175.46 = 43,302.81/x
  3. Step 3: Cross multiply
    79,112.91x = 109,175.46 × 43,302.81
  4. Step 4: Simplify right side
    79,112.91x = 4,727,604,201.04
  5. Step 5: Solve for x
    x = 4,727,604,201.04/79,112.91
  6. Step 6: Final answer
    x = 59,757.68

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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.