Home / 81,694.08-122,541.12-26,298.24

Finding the Fourth Proportional to 81,694.08, 122,541.12 and 26,298.24

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Solution

The fourth proportional to 81,694.08, 122,541.12 and 26,298.24 is: 39,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,694.08 : 122,541.12 = 26,298.24 : x
  2. Step 2: Convert to fraction form
    81,694.08/122,541.12 = 26,298.24/x
  3. Step 3: Cross multiply
    81,694.08x = 122,541.12 × 26,298.24
  4. Step 4: Simplify right side
    81,694.08x = 3,222,615,783.63
  5. Step 5: Solve for x
    x = 3,222,615,783.63/81,694.08
  6. Step 6: Final answer
    x = 39,447.36

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Similar ratio
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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.