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Finding the Fourth Proportional to 81,753.60, 122,660.64 and 35,042.88

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Solution

The fourth proportional to 81,753.60, 122,660.64 and 35,042.88 is: 52,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,753.60 : 122,660.64 = 35,042.88 : x
  2. Step 2: Convert to fraction form
    81,753.60/122,660.64 = 35,042.88/x
  3. Step 3: Cross multiply
    81,753.60x = 122,660.64 × 35,042.88
  4. Step 4: Simplify right side
    81,753.60x = 4,298,382,088.24
  5. Step 5: Solve for x
    x = 4,298,382,088.24/81,753.60
  6. Step 6: Final answer
    x = 52,577.28

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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.