Home / 57,745.20-86,704.20-40,292.40

Finding the Fourth Proportional to 57,745.20, 86,704.20 and 40,292.40

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Solution

The fourth proportional to 57,745.20, 86,704.20 and 40,292.40 is: 60,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.20 : 86,704.20 = 40,292.40 : x
  2. Step 2: Convert to fraction form
    57,745.20/86,704.20 = 40,292.40/x
  3. Step 3: Cross multiply
    57,745.20x = 86,704.20 × 40,292.40
  4. Step 4: Simplify right side
    57,745.20x = 3,493,520,308.08
  5. Step 5: Solve for x
    x = 3,493,520,308.08/57,745.20
  6. Step 6: Final answer
    x = 60,498.89

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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.