Home / 54,158.73-81,017.78-45,786.57

Finding the Fourth Proportional to 54,158.73, 81,017.78 and 45,786.57

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Solution

The fourth proportional to 54,158.73, 81,017.78 and 45,786.57 is: 68,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,158.73 : 81,017.78 = 45,786.57 : x
  2. Step 2: Convert to fraction form
    54,158.73/81,017.78 = 45,786.57/x
  3. Step 3: Cross multiply
    54,158.73x = 81,017.78 × 45,786.57
  4. Step 4: Simplify right side
    54,158.73x = 3,709,526,026.28
  5. Step 5: Solve for x
    x = 3,709,526,026.28/54,158.73
  6. Step 6: Final answer
    x = 68,493.59

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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.