Home / 259,529.11-389,260-82,054.03

Finding the Fourth Proportional to 259,529.11, 389,260 and 82,054.03

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Solution

The fourth proportional to 259,529.11, 389,260 and 82,054.03 is: 123,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,529.11 : 389,260 = 82,054.03 : x
  2. Step 2: Convert to fraction form
    259,529.11/389,260 = 82,054.03/x
  3. Step 3: Cross multiply
    259,529.11x = 389,260 × 82,054.03
  4. Step 4: Simplify right side
    259,529.11x = 31,940,351,717.80
  5. Step 5: Solve for x
    x = 31,940,351,717.80/259,529.11
  6. Step 6: Final answer
    x = 123,070.40

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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.