Home / 81,192.66-121,823.05-36,183.01

Finding the Fourth Proportional to 81,192.66, 121,823.05 and 36,183.01

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Solution

The fourth proportional to 81,192.66, 121,823.05 and 36,183.01 is: 54,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,192.66 : 121,823.05 = 36,183.01 : x
  2. Step 2: Convert to fraction form
    81,192.66/121,823.05 = 36,183.01/x
  3. Step 3: Cross multiply
    81,192.66x = 121,823.05 × 36,183.01
  4. Step 4: Simplify right side
    81,192.66x = 4,407,924,241.37
  5. Step 5: Solve for x
    x = 4,407,924,241.37/81,192.66
  6. Step 6: Final answer
    x = 54,289.69

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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.