Home / 55,759.05-83,610.90-20,218.95

Finding the Fourth Proportional to 55,759.05, 83,610.90 and 20,218.95

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Solution

The fourth proportional to 55,759.05, 83,610.90 and 20,218.95 is: 30,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,759.05 : 83,610.90 = 20,218.95 : x
  2. Step 2: Convert to fraction form
    55,759.05/83,610.90 = 20,218.95/x
  3. Step 3: Cross multiply
    55,759.05x = 83,610.90 × 20,218.95
  4. Step 4: Simplify right side
    55,759.05x = 1,690,524,606.56
  5. Step 5: Solve for x
    x = 1,690,524,606.56/55,759.05
  6. Step 6: Final answer
    x = 30,318.39

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1.5x scale

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.