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Finding the Fourth Proportional to 84,095.34, 126,142.66 and 27,939.66

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Solution

The fourth proportional to 84,095.34, 126,142.66 and 27,939.66 is: 41,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,095.34 : 126,142.66 = 27,939.66 : x
  2. Step 2: Convert to fraction form
    84,095.34/126,142.66 = 27,939.66/x
  3. Step 3: Cross multiply
    84,095.34x = 126,142.66 × 27,939.66
  4. Step 4: Simplify right side
    84,095.34x = 3,524,383,031.90
  5. Step 5: Solve for x
    x = 3,524,383,031.90/84,095.34
  6. Step 6: Final answer
    x = 41,909.37

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1.5x scale

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.