Home / 57,686.46-86,529.18-18,243.60

Finding the Fourth Proportional to 57,686.46, 86,529.18 and 18,243.60

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Solution

The fourth proportional to 57,686.46, 86,529.18 and 18,243.60 is: 27,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,686.46 : 86,529.18 = 18,243.60 : x
  2. Step 2: Convert to fraction form
    57,686.46/86,529.18 = 18,243.60/x
  3. Step 3: Cross multiply
    57,686.46x = 86,529.18 × 18,243.60
  4. Step 4: Simplify right side
    57,686.46x = 1,578,603,748.25
  5. Step 5: Solve for x
    x = 1,578,603,748.25/57,686.46
  6. Step 6: Final answer
    x = 27,365.24

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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.