Home / 80,983.56-121,433.22-36,589.08

Finding the Fourth Proportional to 80,983.56, 121,433.22 and 36,589.08

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Solution

The fourth proportional to 80,983.56, 121,433.22 and 36,589.08 is: 54,864.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,983.56 : 121,433.22 = 36,589.08 : x
  2. Step 2: Convert to fraction form
    80,983.56/121,433.22 = 36,589.08/x
  3. Step 3: Cross multiply
    80,983.56x = 121,433.22 × 36,589.08
  4. Step 4: Simplify right side
    80,983.56x = 4,443,129,801.24
  5. Step 5: Solve for x
    x = 4,443,129,801.24/80,983.56
  6. Step 6: Final answer
    x = 54,864.59

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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.