Home / 54,201.88-81,247.23-20,908.86

Finding the Fourth Proportional to 54,201.88, 81,247.23 and 20,908.86

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Solution

The fourth proportional to 54,201.88, 81,247.23 and 20,908.86 is: 31,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,201.88 : 81,247.23 = 20,908.86 : x
  2. Step 2: Convert to fraction form
    54,201.88/81,247.23 = 20,908.86/x
  3. Step 3: Cross multiply
    54,201.88x = 81,247.23 × 20,908.86
  4. Step 4: Simplify right side
    54,201.88x = 1,698,786,957.46
  5. Step 5: Solve for x
    x = 1,698,786,957.46/54,201.88
  6. Step 6: Final answer
    x = 31,341.85

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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.