Home / 79,789.47-110,114.38-43,979.39

Finding the Fourth Proportional to 79,789.47, 110,114.38 and 43,979.39

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Solution

The fourth proportional to 79,789.47, 110,114.38 and 43,979.39 is: 60,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.47 : 110,114.38 = 43,979.39 : x
  2. Step 2: Convert to fraction form
    79,789.47/110,114.38 = 43,979.39/x
  3. Step 3: Cross multiply
    79,789.47x = 110,114.38 × 43,979.39
  4. Step 4: Simplify right side
    79,789.47x = 4,842,763,262.63
  5. Step 5: Solve for x
    x = 4,842,763,262.63/79,789.47
  6. Step 6: Final answer
    x = 60,694.27

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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.