Home / 57,965.97-86,956.38-17,987.61

Finding the Fourth Proportional to 57,965.97, 86,956.38 and 17,987.61

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Solution

The fourth proportional to 57,965.97, 86,956.38 and 17,987.61 is: 26,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,965.97 : 86,956.38 = 17,987.61 : x
  2. Step 2: Convert to fraction form
    57,965.97/86,956.38 = 17,987.61/x
  3. Step 3: Cross multiply
    57,965.97x = 86,956.38 × 17,987.61
  4. Step 4: Simplify right side
    57,965.97x = 1,564,137,450.45
  5. Step 5: Solve for x
    x = 1,564,137,450.45/57,965.97
  6. Step 6: Final answer
    x = 26,983.72

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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.