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Finding the Fourth Proportional to 57,744.28, 79,656.78 and 36,486.64

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Solution

The fourth proportional to 57,744.28, 79,656.78 and 36,486.64 is: 50,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,744.28 : 79,656.78 = 36,486.64 : x
  2. Step 2: Convert to fraction form
    57,744.28/79,656.78 = 36,486.64/x
  3. Step 3: Cross multiply
    57,744.28x = 79,656.78 × 36,486.64
  4. Step 4: Simplify right side
    57,744.28x = 2,906,408,255.42
  5. Step 5: Solve for x
    x = 2,906,408,255.42/57,744.28
  6. Step 6: Final answer
    x = 50,332.40

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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.