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Finding the Fourth Proportional to 63,646, 87,844.32 and 36,789.60

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Solution

The fourth proportional to 63,646, 87,844.32 and 36,789.60 is: 50,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,646 : 87,844.32 = 36,789.60 : x
  2. Step 2: Convert to fraction form
    63,646/87,844.32 = 36,789.60/x
  3. Step 3: Cross multiply
    63,646x = 87,844.32 × 36,789.60
  4. Step 4: Simplify right side
    63,646x = 3,231,757,395.07
  5. Step 5: Solve for x
    x = 3,231,757,395.07/63,646
  6. Step 6: Final answer
    x = 50,777.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.