Home / 50,981.36-70,351.89-28,321.79

Finding the Fourth Proportional to 50,981.36, 70,351.89 and 28,321.79

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Solution

The fourth proportional to 50,981.36, 70,351.89 and 28,321.79 is: 39,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,981.36 : 70,351.89 = 28,321.79 : x
  2. Step 2: Convert to fraction form
    50,981.36/70,351.89 = 28,321.79/x
  3. Step 3: Cross multiply
    50,981.36x = 70,351.89 × 28,321.79
  4. Step 4: Simplify right side
    50,981.36x = 1,992,491,454.68
  5. Step 5: Solve for x
    x = 1,992,491,454.68/50,981.36
  6. Step 6: Final answer
    x = 39,082.74

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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.