Home / 79,365.69-109,521.20-43,556.30

Finding the Fourth Proportional to 79,365.69, 109,521.20 and 43,556.30

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Solution

The fourth proportional to 79,365.69, 109,521.20 and 43,556.30 is: 60,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,365.69 : 109,521.20 = 43,556.30 : x
  2. Step 2: Convert to fraction form
    79,365.69/109,521.20 = 43,556.30/x
  3. Step 3: Cross multiply
    79,365.69x = 109,521.20 × 43,556.30
  4. Step 4: Simplify right side
    79,365.69x = 4,770,337,804.84
  5. Step 5: Solve for x
    x = 4,770,337,804.84/79,365.69
  6. Step 6: Final answer
    x = 60,105.79

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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.