Home / 67,022.48-100,512.12-20,262.80

Finding the Fourth Proportional to 67,022.48, 100,512.12 and 20,262.80

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Solution

The fourth proportional to 67,022.48, 100,512.12 and 20,262.80 is: 30,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,022.48 : 100,512.12 = 20,262.80 : x
  2. Step 2: Convert to fraction form
    67,022.48/100,512.12 = 20,262.80/x
  3. Step 3: Cross multiply
    67,022.48x = 100,512.12 × 20,262.80
  4. Step 4: Simplify right side
    67,022.48x = 2,036,656,985.14
  5. Step 5: Solve for x
    x = 2,036,656,985.14/67,022.48
  6. Step 6: Final answer
    x = 30,387.67

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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.