Home / 84,020.22-115,949.27-45,781.61

Finding the Fourth Proportional to 84,020.22, 115,949.27 and 45,781.61

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Solution

The fourth proportional to 84,020.22, 115,949.27 and 45,781.61 is: 63,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,020.22 : 115,949.27 = 45,781.61 : x
  2. Step 2: Convert to fraction form
    84,020.22/115,949.27 = 45,781.61/x
  3. Step 3: Cross multiply
    84,020.22x = 115,949.27 × 45,781.61
  4. Step 4: Simplify right side
    84,020.22x = 5,308,343,793.63
  5. Step 5: Solve for x
    x = 5,308,343,793.63/84,020.22
  6. Step 6: Final answer
    x = 63,179.36

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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.