Home / 68,946.56-103,324.16-31,414.91

Finding the Fourth Proportional to 68,946.56, 103,324.16 and 31,414.91

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Solution

The fourth proportional to 68,946.56, 103,324.16 and 31,414.91 is: 47,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,946.56 : 103,324.16 = 31,414.91 : x
  2. Step 2: Convert to fraction form
    68,946.56/103,324.16 = 31,414.91/x
  3. Step 3: Cross multiply
    68,946.56x = 103,324.16 × 31,414.91
  4. Step 4: Simplify right side
    68,946.56x = 3,245,918,771.84
  5. Step 5: Solve for x
    x = 3,245,918,771.84/68,946.56
  6. Step 6: Final answer
    x = 47,078.76

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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.