Home / 81,654.48-112,682.34-45,843.66

Finding the Fourth Proportional to 81,654.48, 112,682.34 and 45,843.66

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Solution

The fourth proportional to 81,654.48, 112,682.34 and 45,843.66 is: 63,263.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,654.48 : 112,682.34 = 45,843.66 : x
  2. Step 2: Convert to fraction form
    81,654.48/112,682.34 = 45,843.66/x
  3. Step 3: Cross multiply
    81,654.48x = 112,682.34 × 45,843.66
  4. Step 4: Simplify right side
    81,654.48x = 5,165,770,882.96
  5. Step 5: Solve for x
    x = 5,165,770,882.96/81,654.48
  6. Step 6: Final answer
    x = 63,263.78

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1.5x scale

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.