Home / 79,789.14-110,109.78-43,980.54

Finding the Fourth Proportional to 79,789.14, 110,109.78 and 43,980.54

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Solution

The fourth proportional to 79,789.14, 110,109.78 and 43,980.54 is: 60,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.14 : 110,109.78 = 43,980.54 : x
  2. Step 2: Convert to fraction form
    79,789.14/110,109.78 = 43,980.54/x
  3. Step 3: Cross multiply
    79,789.14x = 110,109.78 × 43,980.54
  4. Step 4: Simplify right side
    79,789.14x = 4,842,687,583.68
  5. Step 5: Solve for x
    x = 4,842,687,583.68/79,789.14
  6. Step 6: Final answer
    x = 60,693.57

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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.