Home / 81,923.38-113,089.10-55,081.44

Finding the Fourth Proportional to 81,923.38, 113,089.10 and 55,081.44

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Solution

The fourth proportional to 81,923.38, 113,089.10 and 55,081.44 is: 76,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,923.38 : 113,089.10 = 55,081.44 : x
  2. Step 2: Convert to fraction form
    81,923.38/113,089.10 = 55,081.44/x
  3. Step 3: Cross multiply
    81,923.38x = 113,089.10 × 55,081.44
  4. Step 4: Simplify right side
    81,923.38x = 6,229,110,200.90
  5. Step 5: Solve for x
    x = 6,229,110,200.90/81,923.38
  6. Step 6: Final answer
    x = 76,035.81

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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.