Home / 83,795.47-125,694.56-20,615.76

Finding the Fourth Proportional to 83,795.47, 125,694.56 and 20,615.76

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Solution

The fourth proportional to 83,795.47, 125,694.56 and 20,615.76 is: 30,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,795.47 : 125,694.56 = 20,615.76 : x
  2. Step 2: Convert to fraction form
    83,795.47/125,694.56 = 20,615.76/x
  3. Step 3: Cross multiply
    83,795.47x = 125,694.56 × 20,615.76
  4. Step 4: Simplify right side
    83,795.47x = 2,591,288,933.81
  5. Step 5: Solve for x
    x = 2,591,288,933.81/83,795.47
  6. Step 6: Final answer
    x = 30,923.97

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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.