Home / 54,475.24-81,691.78-21,190.76

Finding the Fourth Proportional to 54,475.24, 81,691.78 and 21,190.76

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Solution

The fourth proportional to 54,475.24, 81,691.78 and 21,190.76 is: 31,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,475.24 : 81,691.78 = 21,190.76 : x
  2. Step 2: Convert to fraction form
    54,475.24/81,691.78 = 21,190.76/x
  3. Step 3: Cross multiply
    54,475.24x = 81,691.78 × 21,190.76
  4. Step 4: Simplify right side
    54,475.24x = 1,731,110,903.95
  5. Step 5: Solve for x
    x = 1,731,110,903.95/54,475.24
  6. Step 6: Final answer
    x = 31,777.94

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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.