Home / 67,153.25-100,729.37-20,406.13

Finding the Fourth Proportional to 67,153.25, 100,729.37 and 20,406.13

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Solution

The fourth proportional to 67,153.25, 100,729.37 and 20,406.13 is: 30,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,153.25 : 100,729.37 = 20,406.13 : x
  2. Step 2: Convert to fraction form
    67,153.25/100,729.37 = 20,406.13/x
  3. Step 3: Cross multiply
    67,153.25x = 100,729.37 × 20,406.13
  4. Step 4: Simplify right side
    67,153.25x = 2,055,496,418.23
  5. Step 5: Solve for x
    x = 2,055,496,418.23/67,153.25
  6. Step 6: Final answer
    x = 30,609.04

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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.