Home / 81,481.19-112,441.91-45,673.52

Finding the Fourth Proportional to 81,481.19, 112,441.91 and 45,673.52

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Solution

The fourth proportional to 81,481.19, 112,441.91 and 45,673.52 is: 63,028.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,481.19 : 112,441.91 = 45,673.52 : x
  2. Step 2: Convert to fraction form
    81,481.19/112,441.91 = 45,673.52/x
  3. Step 3: Cross multiply
    81,481.19x = 112,441.91 × 45,673.52
  4. Step 4: Simplify right side
    81,481.19x = 5,135,617,034.65
  5. Step 5: Solve for x
    x = 5,135,617,034.65/81,481.19
  6. Step 6: Final answer
    x = 63,028.26

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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.