Home / 57,408.20-85,958.70-36,518.60

Finding the Fourth Proportional to 57,408.20, 85,958.70 and 36,518.60

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Solution

The fourth proportional to 57,408.20, 85,958.70 and 36,518.60 is: 54,680.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.20 : 85,958.70 = 36,518.60 : x
  2. Step 2: Convert to fraction form
    57,408.20/85,958.70 = 36,518.60/x
  3. Step 3: Cross multiply
    57,408.20x = 85,958.70 × 36,518.60
  4. Step 4: Simplify right side
    57,408.20x = 3,139,091,381.82
  5. Step 5: Solve for x
    x = 3,139,091,381.82/57,408.20
  6. Step 6: Final answer
    x = 54,680.19

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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.