Home / 78,850.13-108,809.12-43,033.28

Finding the Fourth Proportional to 78,850.13, 108,809.12 and 43,033.28

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Solution

The fourth proportional to 78,850.13, 108,809.12 and 43,033.28 is: 59,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,850.13 : 108,809.12 = 43,033.28 : x
  2. Step 2: Convert to fraction form
    78,850.13/108,809.12 = 43,033.28/x
  3. Step 3: Cross multiply
    78,850.13x = 108,809.12 × 43,033.28
  4. Step 4: Simplify right side
    78,850.13x = 4,682,412,891.05
  5. Step 5: Solve for x
    x = 4,682,412,891.05/78,850.13
  6. Step 6: Final answer
    x = 59,383.71

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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.