Home / 81,135.56-111,953.39-45,325.86

Finding the Fourth Proportional to 81,135.56, 111,953.39 and 45,325.86

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Solution

The fourth proportional to 81,135.56, 111,953.39 and 45,325.86 is: 62,542.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,135.56 : 111,953.39 = 45,325.86 : x
  2. Step 2: Convert to fraction form
    81,135.56/111,953.39 = 45,325.86/x
  3. Step 3: Cross multiply
    81,135.56x = 111,953.39 × 45,325.86
  4. Step 4: Simplify right side
    81,135.56x = 5,074,383,455.04
  5. Step 5: Solve for x
    x = 5,074,383,455.04/81,135.56
  6. Step 6: Final answer
    x = 62,542.04

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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.