Home / 79,009.06-109,031.75-43,198.69

Finding the Fourth Proportional to 79,009.06, 109,031.75 and 43,198.69

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Solution

The fourth proportional to 79,009.06, 109,031.75 and 43,198.69 is: 59,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009.06 : 109,031.75 = 43,198.69 : x
  2. Step 2: Convert to fraction form
    79,009.06/109,031.75 = 43,198.69/x
  3. Step 3: Cross multiply
    79,009.06x = 109,031.75 × 43,198.69
  4. Step 4: Simplify right side
    79,009.06x = 4,710,028,768.41
  5. Step 5: Solve for x
    x = 4,710,028,768.41/79,009.06
  6. Step 6: Final answer
    x = 59,613.78

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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.