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Finding the Fourth Proportional to 73,512.22, 110,268.22 and 20,921.71

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Solution

The fourth proportional to 73,512.22, 110,268.22 and 20,921.71 is: 31,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,512.22 : 110,268.22 = 20,921.71 : x
  2. Step 2: Convert to fraction form
    73,512.22/110,268.22 = 20,921.71/x
  3. Step 3: Cross multiply
    73,512.22x = 110,268.22 × 20,921.71
  4. Step 4: Simplify right side
    73,512.22x = 2,306,999,721.06
  5. Step 5: Solve for x
    x = 2,306,999,721.06/73,512.22
  6. Step 6: Final answer
    x = 31,382.53

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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.