Home / 49,121.28-73,685.15-17,978.40

Finding the Fourth Proportional to 49,121.28, 73,685.15 and 17,978.40

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Solution

The fourth proportional to 49,121.28, 73,685.15 and 17,978.40 is: 26,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,121.28 : 73,685.15 = 17,978.40 : x
  2. Step 2: Convert to fraction form
    49,121.28/73,685.15 = 17,978.40/x
  3. Step 3: Cross multiply
    49,121.28x = 73,685.15 × 17,978.40
  4. Step 4: Simplify right side
    49,121.28x = 1,324,741,100.76
  5. Step 5: Solve for x
    x = 1,324,741,100.76/49,121.28
  6. Step 6: Final answer
    x = 26,968.78

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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.