Home / 40,111.54-55,355.20-23,114.43

Finding the Fourth Proportional to 40,111.54, 55,355.20 and 23,114.43

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Solution

The fourth proportional to 40,111.54, 55,355.20 and 23,114.43 is: 31,898.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.54 : 55,355.20 = 23,114.43 : x
  2. Step 2: Convert to fraction form
    40,111.54/55,355.20 = 23,114.43/x
  3. Step 3: Cross multiply
    40,111.54x = 55,355.20 × 23,114.43
  4. Step 4: Simplify right side
    40,111.54x = 1,279,503,837.75
  5. Step 5: Solve for x
    x = 1,279,503,837.75/40,111.54
  6. Step 6: Final answer
    x = 31,898.65

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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.