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Finding the Fourth Proportional to 63,579.92, 87,739.44 and 35,285

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Solution

The fourth proportional to 63,579.92, 87,739.44 and 35,285 is: 48,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,579.92 : 87,739.44 = 35,285 : x
  2. Step 2: Convert to fraction form
    63,579.92/87,739.44 = 35,285/x
  3. Step 3: Cross multiply
    63,579.92x = 87,739.44 × 35,285
  4. Step 4: Simplify right side
    63,579.92x = 3,095,886,140.40
  5. Step 5: Solve for x
    x = 3,095,886,140.40/63,579.92
  6. Step 6: Final answer
    x = 48,692.83

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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.