Home / 68,942.72-95,135.36-38,726.40

Finding the Fourth Proportional to 68,942.72, 95,135.36 and 38,726.40

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Solution

The fourth proportional to 68,942.72, 95,135.36 and 38,726.40 is: 53,439.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,942.72 : 95,135.36 = 38,726.40 : x
  2. Step 2: Convert to fraction form
    68,942.72/95,135.36 = 38,726.40/x
  3. Step 3: Cross multiply
    68,942.72x = 95,135.36 × 38,726.40
  4. Step 4: Simplify right side
    68,942.72x = 3,684,250,005.50
  5. Step 5: Solve for x
    x = 3,684,250,005.50/68,942.72
  6. Step 6: Final answer
    x = 53,439.29

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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.