Home / 57,728.68-86,605.98-20,291.32

Finding the Fourth Proportional to 57,728.68, 86,605.98 and 20,291.32

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Solution

The fourth proportional to 57,728.68, 86,605.98 and 20,291.32 is: 30,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.68 : 86,605.98 = 20,291.32 : x
  2. Step 2: Convert to fraction form
    57,728.68/86,605.98 = 20,291.32/x
  3. Step 3: Cross multiply
    57,728.68x = 86,605.98 × 20,291.32
  4. Step 4: Simplify right side
    57,728.68x = 1,757,349,654.09
  5. Step 5: Solve for x
    x = 1,757,349,654.09/57,728.68
  6. Step 6: Final answer
    x = 30,441.54

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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.