Home / 64,944.60-97,408.38-20,571.72

Finding the Fourth Proportional to 64,944.60, 97,408.38 and 20,571.72

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Solution

The fourth proportional to 64,944.60, 97,408.38 and 20,571.72 is: 30,854.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,944.60 : 97,408.38 = 20,571.72 : x
  2. Step 2: Convert to fraction form
    64,944.60/97,408.38 = 20,571.72/x
  3. Step 3: Cross multiply
    64,944.60x = 97,408.38 × 20,571.72
  4. Step 4: Simplify right side
    64,944.60x = 2,003,857,919.01
  5. Step 5: Solve for x
    x = 2,003,857,919.01/64,944.60
  6. Step 6: Final answer
    x = 30,854.88

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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.