Home / 67,022.40-100,447.20-40,699.20

Finding the Fourth Proportional to 67,022.40, 100,447.20 and 40,699.20

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Solution

The fourth proportional to 67,022.40, 100,447.20 and 40,699.20 is: 60,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,022.40 : 100,447.20 = 40,699.20 : x
  2. Step 2: Convert to fraction form
    67,022.40/100,447.20 = 40,699.20/x
  3. Step 3: Cross multiply
    67,022.40x = 100,447.20 × 40,699.20
  4. Step 4: Simplify right side
    67,022.40x = 4,088,120,682.24
  5. Step 5: Solve for x
    x = 4,088,120,682.24/67,022.40
  6. Step 6: Final answer
    x = 60,996.33

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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.