Home / 79,018.21-109,049.18-43,207.84

Finding the Fourth Proportional to 79,018.21, 109,049.18 and 43,207.84

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Solution

The fourth proportional to 79,018.21, 109,049.18 and 43,207.84 is: 59,629.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,018.21 : 109,049.18 = 43,207.84 : x
  2. Step 2: Convert to fraction form
    79,018.21/109,049.18 = 43,207.84/x
  3. Step 3: Cross multiply
    79,018.21x = 109,049.18 × 43,207.84
  4. Step 4: Simplify right side
    79,018.21x = 4,711,778,760.29
  5. Step 5: Solve for x
    x = 4,711,778,760.29/79,018.21
  6. Step 6: Final answer
    x = 59,629.03

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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.