Home / 55,249.15-82,885.73-20,188.75

Finding the Fourth Proportional to 55,249.15, 82,885.73 and 20,188.75

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Solution

The fourth proportional to 55,249.15, 82,885.73 and 20,188.75 is: 30,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,249.15 : 82,885.73 = 20,188.75 : x
  2. Step 2: Convert to fraction form
    55,249.15/82,885.73 = 20,188.75/x
  3. Step 3: Cross multiply
    55,249.15x = 82,885.73 × 20,188.75
  4. Step 4: Simplify right side
    55,249.15x = 1,673,359,281.54
  5. Step 5: Solve for x
    x = 1,673,359,281.54/55,249.15
  6. Step 6: Final answer
    x = 30,287.51

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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.