Home / 54,756.05-82,134.72-21,491.78

Finding the Fourth Proportional to 54,756.05, 82,134.72 and 21,491.78

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Solution

The fourth proportional to 54,756.05, 82,134.72 and 21,491.78 is: 32,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,756.05 : 82,134.72 = 21,491.78 : x
  2. Step 2: Convert to fraction form
    54,756.05/82,134.72 = 21,491.78/x
  3. Step 3: Cross multiply
    54,756.05x = 82,134.72 × 21,491.78
  4. Step 4: Simplify right side
    54,756.05x = 1,765,220,921.93
  5. Step 5: Solve for x
    x = 1,765,220,921.93/54,756.05
  6. Step 6: Final answer
    x = 32,237.92

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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.