Home / 81,042.66-111,845.21-45,238.05

Finding the Fourth Proportional to 81,042.66, 111,845.21 and 45,238.05

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Solution

The fourth proportional to 81,042.66, 111,845.21 and 45,238.05 is: 62,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,042.66 : 111,845.21 = 45,238.05 : x
  2. Step 2: Convert to fraction form
    81,042.66/111,845.21 = 45,238.05/x
  3. Step 3: Cross multiply
    81,042.66x = 111,845.21 × 45,238.05
  4. Step 4: Simplify right side
    81,042.66x = 5,059,658,976.05
  5. Step 5: Solve for x
    x = 5,059,658,976.05/81,042.66
  6. Step 6: Final answer
    x = 62,432.04

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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.