Home / 83,480.72-125,228.80-30,186

Finding the Fourth Proportional to 83,480.72, 125,228.80 and 30,186

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Solution

The fourth proportional to 83,480.72, 125,228.80 and 30,186 is: 45,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,480.72 : 125,228.80 = 30,186 : x
  2. Step 2: Convert to fraction form
    83,480.72/125,228.80 = 30,186/x
  3. Step 3: Cross multiply
    83,480.72x = 125,228.80 × 30,186
  4. Step 4: Simplify right side
    83,480.72x = 3,780,156,556.80
  5. Step 5: Solve for x
    x = 3,780,156,556.80/83,480.72
  6. Step 6: Final answer
    x = 45,281.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.