Home / 71,128.89-106,657.56-23,727.20

Finding the Fourth Proportional to 71,128.89, 106,657.56 and 23,727.20

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Solution

The fourth proportional to 71,128.89, 106,657.56 and 23,727.20 is: 35,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,128.89 : 106,657.56 = 23,727.20 : x
  2. Step 2: Convert to fraction form
    71,128.89/106,657.56 = 23,727.20/x
  3. Step 3: Cross multiply
    71,128.89x = 106,657.56 × 23,727.20
  4. Step 4: Simplify right side
    71,128.89x = 2,530,684,724.34
  5. Step 5: Solve for x
    x = 2,530,684,724.34/71,128.89
  6. Step 6: Final answer
    x = 35,578.86

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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.