Home / 67,168.32-100,755.36-20,422.08

Finding the Fourth Proportional to 67,168.32, 100,755.36 and 20,422.08

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Solution

The fourth proportional to 67,168.32, 100,755.36 and 20,422.08 is: 30,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,168.32 : 100,755.36 = 20,422.08 : x
  2. Step 2: Convert to fraction form
    67,168.32/100,755.36 = 20,422.08/x
  3. Step 3: Cross multiply
    67,168.32x = 100,755.36 × 20,422.08
  4. Step 4: Simplify right side
    67,168.32x = 2,057,634,022.35
  5. Step 5: Solve for x
    x = 2,057,634,022.35/67,168.32
  6. Step 6: Final answer
    x = 30,634.00

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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.