Home / 81,092.61-111,907.58-45,282.65

Finding the Fourth Proportional to 81,092.61, 111,907.58 and 45,282.65

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Solution

The fourth proportional to 81,092.61, 111,907.58 and 45,282.65 is: 62,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092.61 : 111,907.58 = 45,282.65 : x
  2. Step 2: Convert to fraction form
    81,092.61/111,907.58 = 45,282.65/x
  3. Step 3: Cross multiply
    81,092.61x = 111,907.58 × 45,282.65
  4. Step 4: Simplify right side
    81,092.61x = 5,067,470,991.54
  5. Step 5: Solve for x
    x = 5,067,470,991.54/81,092.61
  6. Step 6: Final answer
    x = 62,489.92

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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.