Home / 45,512.68-68,268.38-12,231.72

Finding the Fourth Proportional to 45,512.68, 68,268.38 and 12,231.72

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Solution

The fourth proportional to 45,512.68, 68,268.38 and 12,231.72 is: 18,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,512.68 : 68,268.38 = 12,231.72 : x
  2. Step 2: Convert to fraction form
    45,512.68/68,268.38 = 12,231.72/x
  3. Step 3: Cross multiply
    45,512.68x = 68,268.38 × 12,231.72
  4. Step 4: Simplify right side
    45,512.68x = 835,039,709.01
  5. Step 5: Solve for x
    x = 835,039,709.01/45,512.68
  6. Step 6: Final answer
    x = 18,347.41

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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.