Home / 68,930.74-95,120.04-38,715.28

Finding the Fourth Proportional to 68,930.74, 95,120.04 and 38,715.28

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Solution

The fourth proportional to 68,930.74, 95,120.04 and 38,715.28 is: 53,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,930.74 : 95,120.04 = 38,715.28 : x
  2. Step 2: Convert to fraction form
    68,930.74/95,120.04 = 38,715.28/x
  3. Step 3: Cross multiply
    68,930.74x = 95,120.04 × 38,715.28
  4. Step 4: Simplify right side
    68,930.74x = 3,682,598,982.21
  5. Step 5: Solve for x
    x = 3,682,598,982.21/68,930.74
  6. Step 6: Final answer
    x = 53,424.63

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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.