Home / 79,087.39-109,140.41-43,277.09

Finding the Fourth Proportional to 79,087.39, 109,140.41 and 43,277.09

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Solution

The fourth proportional to 79,087.39, 109,140.41 and 43,277.09 is: 59,722.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,087.39 : 109,140.41 = 43,277.09 : x
  2. Step 2: Convert to fraction form
    79,087.39/109,140.41 = 43,277.09/x
  3. Step 3: Cross multiply
    79,087.39x = 109,140.41 × 43,277.09
  4. Step 4: Simplify right side
    79,087.39x = 4,723,278,908.70
  5. Step 5: Solve for x
    x = 4,723,278,908.70/79,087.39
  6. Step 6: Final answer
    x = 59,722.28

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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.