Home / 75,610.75-113,416.14-20,206.75

Finding the Fourth Proportional to 75,610.75, 113,416.14 and 20,206.75

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Solution

The fourth proportional to 75,610.75, 113,416.14 and 20,206.75 is: 30,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,610.75 : 113,416.14 = 20,206.75 : x
  2. Step 2: Convert to fraction form
    75,610.75/113,416.14 = 20,206.75/x
  3. Step 3: Cross multiply
    75,610.75x = 113,416.14 × 20,206.75
  4. Step 4: Simplify right side
    75,610.75x = 2,291,771,586.95
  5. Step 5: Solve for x
    x = 2,291,771,586.95/75,610.75
  6. Step 6: Final answer
    x = 30,310.13

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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.