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Finding the Fourth Proportional to 81,873.28, 122,809.44 and 22,708.32

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Solution

The fourth proportional to 81,873.28, 122,809.44 and 22,708.32 is: 34,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,873.28 : 122,809.44 = 22,708.32 : x
  2. Step 2: Convert to fraction form
    81,873.28/122,809.44 = 22,708.32/x
  3. Step 3: Cross multiply
    81,873.28x = 122,809.44 × 22,708.32
  4. Step 4: Simplify right side
    81,873.28x = 2,788,796,062.54
  5. Step 5: Solve for x
    x = 2,788,796,062.54/81,873.28
  6. Step 6: Final answer
    x = 34,062.35

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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.