Home / 57,747.14-86,615.13-39,146.75

Finding the Fourth Proportional to 57,747.14, 86,615.13 and 39,146.75

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Solution

The fourth proportional to 57,747.14, 86,615.13 and 39,146.75 is: 58,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,747.14 : 86,615.13 = 39,146.75 : x
  2. Step 2: Convert to fraction form
    57,747.14/86,615.13 = 39,146.75/x
  3. Step 3: Cross multiply
    57,747.14x = 86,615.13 × 39,146.75
  4. Step 4: Simplify right side
    57,747.14x = 3,390,700,840.33
  5. Step 5: Solve for x
    x = 3,390,700,840.33/57,747.14
  6. Step 6: Final answer
    x = 58,716.34

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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.