Home / 43,419.90-65,127.85-18,108.96

Finding the Fourth Proportional to 43,419.90, 65,127.85 and 18,108.96

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Solution

The fourth proportional to 43,419.90, 65,127.85 and 18,108.96 is: 27,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,419.90 : 65,127.85 = 18,108.96 : x
  2. Step 2: Convert to fraction form
    43,419.90/65,127.85 = 18,108.96/x
  3. Step 3: Cross multiply
    43,419.90x = 65,127.85 × 18,108.96
  4. Step 4: Simplify right side
    43,419.90x = 1,179,397,630.54
  5. Step 5: Solve for x
    x = 1,179,397,630.54/43,419.90
  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.