Home / 81,034.31-111,838.62-45,226.62

Finding the Fourth Proportional to 81,034.31, 111,838.62 and 45,226.62

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Solution

The fourth proportional to 81,034.31, 111,838.62 and 45,226.62 is: 62,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,034.31 : 111,838.62 = 45,226.62 : x
  2. Step 2: Convert to fraction form
    81,034.31/111,838.62 = 45,226.62/x
  3. Step 3: Cross multiply
    81,034.31x = 111,838.62 × 45,226.62
  4. Step 4: Simplify right side
    81,034.31x = 5,058,082,937.66
  5. Step 5: Solve for x
    x = 5,058,082,937.66/81,034.31
  6. Step 6: Final answer
    x = 62,419.03

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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.