Home / 55,579.92-83,369.96-20,505.28

Finding the Fourth Proportional to 55,579.92, 83,369.96 and 20,505.28

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Solution

The fourth proportional to 55,579.92, 83,369.96 and 20,505.28 is: 30,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.92 : 83,369.96 = 20,505.28 : x
  2. Step 2: Convert to fraction form
    55,579.92/83,369.96 = 20,505.28/x
  3. Step 3: Cross multiply
    55,579.92x = 83,369.96 × 20,505.28
  4. Step 4: Simplify right side
    55,579.92x = 1,709,524,373.39
  5. Step 5: Solve for x
    x = 1,709,524,373.39/55,579.92
  6. Step 6: Final answer
    x = 30,757.95

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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.