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Finding the Fourth Proportional to 80,873.57, 111,604.01 and 45,062.81

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Solution

The fourth proportional to 80,873.57, 111,604.01 and 45,062.81 is: 62,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873.57 : 111,604.01 = 45,062.81 : x
  2. Step 2: Convert to fraction form
    80,873.57/111,604.01 = 45,062.81/x
  3. Step 3: Cross multiply
    80,873.57x = 111,604.01 × 45,062.81
  4. Step 4: Simplify right side
    80,873.57x = 5,029,189,852.51
  5. Step 5: Solve for x
    x = 5,029,189,852.51/80,873.57
  6. Step 6: Final answer
    x = 62,185.83

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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.