Home / 81,028.91-121,563.89-24,871.86

Finding the Fourth Proportional to 81,028.91, 121,563.89 and 24,871.86

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Solution

The fourth proportional to 81,028.91, 121,563.89 and 24,871.86 is: 37,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.91 : 121,563.89 = 24,871.86 : x
  2. Step 2: Convert to fraction form
    81,028.91/121,563.89 = 24,871.86/x
  3. Step 3: Cross multiply
    81,028.91x = 121,563.89 × 24,871.86
  4. Step 4: Simplify right side
    81,028.91x = 3,023,520,022.05
  5. Step 5: Solve for x
    x = 3,023,520,022.05/81,028.91
  6. Step 6: Final answer
    x = 37,314.09

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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.