Home / 89,121.25-133,690.12-29,150.06

Finding the Fourth Proportional to 89,121.25, 133,690.12 and 29,150.06

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Solution

The fourth proportional to 89,121.25, 133,690.12 and 29,150.06 is: 43,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.25 : 133,690.12 = 29,150.06 : x
  2. Step 2: Convert to fraction form
    89,121.25/133,690.12 = 29,150.06/x
  3. Step 3: Cross multiply
    89,121.25x = 133,690.12 × 29,150.06
  4. Step 4: Simplify right side
    89,121.25x = 3,897,074,873.66
  5. Step 5: Solve for x
    x = 3,897,074,873.66/89,121.25
  6. Step 6: Final answer
    x = 43,727.79

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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.