Home / 83,635.92-115,378.56-51,793.20

Finding the Fourth Proportional to 83,635.92, 115,378.56 and 51,793.20

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Solution

The fourth proportional to 83,635.92, 115,378.56 and 51,793.20 is: 71,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,635.92 : 115,378.56 = 51,793.20 : x
  2. Step 2: Convert to fraction form
    83,635.92/115,378.56 = 51,793.20/x
  3. Step 3: Cross multiply
    83,635.92x = 115,378.56 × 51,793.20
  4. Step 4: Simplify right side
    83,635.92x = 5,975,824,833.79
  5. Step 5: Solve for x
    x = 5,975,824,833.79/83,635.92
  6. Step 6: Final answer
    x = 71,450.46

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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.