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Finding the Fourth Proportional to 80,873.44, 111,603.84 and 45,062.68

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Solution

The fourth proportional to 80,873.44, 111,603.84 and 45,062.68 is: 62,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873.44 : 111,603.84 = 45,062.68 : x
  2. Step 2: Convert to fraction form
    80,873.44/111,603.84 = 45,062.68/x
  3. Step 3: Cross multiply
    80,873.44x = 111,603.84 × 45,062.68
  4. Step 4: Simplify right side
    80,873.44x = 5,029,168,128.69
  5. Step 5: Solve for x
    x = 5,029,168,128.69/80,873.44
  6. Step 6: Final answer
    x = 62,185.66

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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.