Home / 43,419.91-65,127.84-18,108.97

Finding the Fourth Proportional to 43,419.91, 65,127.84 and 18,108.97

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Solution

The fourth proportional to 43,419.91, 65,127.84 and 18,108.97 is: 27,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.91 : 65,127.84 = 18,108.97 : x
  2. Step 2: Convert to fraction form
    43,419.91/65,127.84 = 18,108.97/x
  3. Step 3: Cross multiply
    43,419.91x = 65,127.84 × 18,108.97
  4. Step 4: Simplify right side
    43,419.91x = 1,179,398,100.72
  5. Step 5: Solve for x
    x = 1,179,398,100.72/43,419.91
  6. Step 6: Final answer
    x = 27,162.61

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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.