Home / 57,458.49-86,187.73-18,018.78

Finding the Fourth Proportional to 57,458.49, 86,187.73 and 18,018.78

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Solution

The fourth proportional to 57,458.49, 86,187.73 and 18,018.78 is: 27,028.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,458.49 : 86,187.73 = 18,018.78 : x
  2. Step 2: Convert to fraction form
    57,458.49/86,187.73 = 18,018.78/x
  3. Step 3: Cross multiply
    57,458.49x = 86,187.73 × 18,018.78
  4. Step 4: Simplify right side
    57,458.49x = 1,552,997,745.57
  5. Step 5: Solve for x
    x = 1,552,997,745.57/57,458.49
  6. Step 6: Final answer
    x = 27,028.17

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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.