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Finding the Fourth Proportional to 57,734.60, 86,601.90 and 36,739.40

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Solution

The fourth proportional to 57,734.60, 86,601.90 and 36,739.40 is: 55,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,734.60 : 86,601.90 = 36,739.40 : x
  2. Step 2: Convert to fraction form
    57,734.60/86,601.90 = 36,739.40/x
  3. Step 3: Cross multiply
    57,734.60x = 86,601.90 × 36,739.40
  4. Step 4: Simplify right side
    57,734.60x = 3,181,701,844.86
  5. Step 5: Solve for x
    x = 3,181,701,844.86/57,734.60
  6. Step 6: Final answer
    x = 55,109.10

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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.