Home / 68,794.08-103,179.60-31,342.56

Finding the Fourth Proportional to 68,794.08, 103,179.60 and 31,342.56

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Solution

The fourth proportional to 68,794.08, 103,179.60 and 31,342.56 is: 47,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,794.08 : 103,179.60 = 31,342.56 : x
  2. Step 2: Convert to fraction form
    68,794.08/103,179.60 = 31,342.56/x
  3. Step 3: Cross multiply
    68,794.08x = 103,179.60 × 31,342.56
  4. Step 4: Simplify right side
    68,794.08x = 3,233,912,803.78
  5. Step 5: Solve for x
    x = 3,233,912,803.78/68,794.08
  6. Step 6: Final answer
    x = 47,008.59

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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.