Home / 68,792.08-103,176.60-31,340.56

Finding the Fourth Proportional to 68,792.08, 103,176.60 and 31,340.56

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Solution

The fourth proportional to 68,792.08, 103,176.60 and 31,340.56 is: 47,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,792.08 : 103,176.60 = 31,340.56 : x
  2. Step 2: Convert to fraction form
    68,792.08/103,176.60 = 31,340.56/x
  3. Step 3: Cross multiply
    68,792.08x = 103,176.60 × 31,340.56
  4. Step 4: Simplify right side
    68,792.08x = 3,233,612,422.90
  5. Step 5: Solve for x
    x = 3,233,612,422.90/68,792.08
  6. Step 6: Final answer
    x = 47,005.59

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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.