Home / 83,743.76-125,628.39-52,128.24

Finding the Fourth Proportional to 83,743.76, 125,628.39 and 52,128.24

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Solution

The fourth proportional to 83,743.76, 125,628.39 and 52,128.24 is: 78,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,743.76 : 125,628.39 = 52,128.24 : x
  2. Step 2: Convert to fraction form
    83,743.76/125,628.39 = 52,128.24/x
  3. Step 3: Cross multiply
    83,743.76x = 125,628.39 × 52,128.24
  4. Step 4: Simplify right side
    83,743.76x = 6,548,786,864.73
  5. Step 5: Solve for x
    x = 6,548,786,864.73/83,743.76
  6. Step 6: Final answer
    x = 78,200.30

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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.