Home / 81,540.30-112,473.82-58,912.54

Finding the Fourth Proportional to 81,540.30, 112,473.82 and 58,912.54

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Solution

The fourth proportional to 81,540.30, 112,473.82 and 58,912.54 is: 81,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,540.30 : 112,473.82 = 58,912.54 : x
  2. Step 2: Convert to fraction form
    81,540.30/112,473.82 = 58,912.54/x
  3. Step 3: Cross multiply
    81,540.30x = 112,473.82 × 58,912.54
  4. Step 4: Simplify right side
    81,540.30x = 6,626,118,419.70
  5. Step 5: Solve for x
    x = 6,626,118,419.70/81,540.30
  6. Step 6: Final answer
    x = 81,261.88

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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.