Home / 81,175.20-121,474.44-49,575.48

Finding the Fourth Proportional to 81,175.20, 121,474.44 and 49,575.48

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Solution

The fourth proportional to 81,175.20, 121,474.44 and 49,575.48 is: 74,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.20 : 121,474.44 = 49,575.48 : x
  2. Step 2: Convert to fraction form
    81,175.20/121,474.44 = 49,575.48/x
  3. Step 3: Cross multiply
    81,175.20x = 121,474.44 × 49,575.48
  4. Step 4: Simplify right side
    81,175.20x = 6,022,153,670.73
  5. Step 5: Solve for x
    x = 6,022,153,670.73/81,175.20
  6. Step 6: Final answer
    x = 74,187.11

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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.