Home / 81,145.76-111,961.96-47,134.04

Finding the Fourth Proportional to 81,145.76, 111,961.96 and 47,134.04

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Solution

The fourth proportional to 81,145.76, 111,961.96 and 47,134.04 is: 65,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,145.76 : 111,961.96 = 47,134.04 : x
  2. Step 2: Convert to fraction form
    81,145.76/111,961.96 = 47,134.04/x
  3. Step 3: Cross multiply
    81,145.76x = 111,961.96 × 47,134.04
  4. Step 4: Simplify right side
    81,145.76x = 5,277,219,501.12
  5. Step 5: Solve for x
    x = 5,277,219,501.12/81,145.76
  6. Step 6: Final answer
    x = 65,033.83

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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.