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Finding the Fourth Proportional to 73,127.60, 109,642.80 and 33,664.40

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Solution

The fourth proportional to 73,127.60, 109,642.80 and 33,664.40 is: 50,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127.60 : 109,642.80 = 33,664.40 : x
  2. Step 2: Convert to fraction form
    73,127.60/109,642.80 = 33,664.40/x
  3. Step 3: Cross multiply
    73,127.60x = 109,642.80 × 33,664.40
  4. Step 4: Simplify right side
    73,127.60x = 3,691,059,076.32
  5. Step 5: Solve for x
    x = 3,691,059,076.32/73,127.60
  6. Step 6: Final answer
    x = 50,474.23

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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.