Home / 45,356.06-68,021.79-28,691.06

Finding the Fourth Proportional to 45,356.06, 68,021.79 and 28,691.06

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Solution

The fourth proportional to 45,356.06, 68,021.79 and 28,691.06 is: 43,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.06 : 68,021.79 = 28,691.06 : x
  2. Step 2: Convert to fraction form
    45,356.06/68,021.79 = 28,691.06/x
  3. Step 3: Cross multiply
    45,356.06x = 68,021.79 × 28,691.06
  4. Step 4: Simplify right side
    45,356.06x = 1,951,617,258.20
  5. Step 5: Solve for x
    x = 1,951,617,258.20/45,356.06
  6. Step 6: Final answer
    x = 43,028.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.