Home / 55,419.94-83,132.38-20,340.46

Finding the Fourth Proportional to 55,419.94, 83,132.38 and 20,340.46

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Solution

The fourth proportional to 55,419.94, 83,132.38 and 20,340.46 is: 30,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.94 : 83,132.38 = 20,340.46 : x
  2. Step 2: Convert to fraction form
    55,419.94/83,132.38 = 20,340.46/x
  3. Step 3: Cross multiply
    55,419.94x = 83,132.38 × 20,340.46
  4. Step 4: Simplify right side
    55,419.94x = 1,690,950,850.09
  5. Step 5: Solve for x
    x = 1,690,950,850.09/55,419.94
  6. Step 6: Final answer
    x = 30,511.60

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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.