Home / 57,859.40-86,788.19-18,415.94

Finding the Fourth Proportional to 57,859.40, 86,788.19 and 18,415.94

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Solution

The fourth proportional to 57,859.40, 86,788.19 and 18,415.94 is: 27,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,859.40 : 86,788.19 = 18,415.94 : x
  2. Step 2: Convert to fraction form
    57,859.40/86,788.19 = 18,415.94/x
  3. Step 3: Cross multiply
    57,859.40x = 86,788.19 × 18,415.94
  4. Step 4: Simplify right side
    57,859.40x = 1,598,285,573.73
  5. Step 5: Solve for x
    x = 1,598,285,573.73/57,859.40
  6. Step 6: Final answer
    x = 27,623.61

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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.