Home / 57,686.20-86,529.30-41,939.80

Finding the Fourth Proportional to 57,686.20, 86,529.30 and 41,939.80

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Solution

The fourth proportional to 57,686.20, 86,529.30 and 41,939.80 is: 62,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,686.20 : 86,529.30 = 41,939.80 : x
  2. Step 2: Convert to fraction form
    57,686.20/86,529.30 = 41,939.80/x
  3. Step 3: Cross multiply
    57,686.20x = 86,529.30 × 41,939.80
  4. Step 4: Simplify right side
    57,686.20x = 3,629,021,536.14
  5. Step 5: Solve for x
    x = 3,629,021,536.14/57,686.20
  6. Step 6: Final answer
    x = 62,909.70

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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.