Home / 84,825.51-127,198.77-31,480.34

Finding the Fourth Proportional to 84,825.51, 127,198.77 and 31,480.34

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Solution

The fourth proportional to 84,825.51, 127,198.77 and 31,480.34 is: 47,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,825.51 : 127,198.77 = 31,480.34 : x
  2. Step 2: Convert to fraction form
    84,825.51/127,198.77 = 31,480.34/x
  3. Step 3: Cross multiply
    84,825.51x = 127,198.77 × 31,480.34
  4. Step 4: Simplify right side
    84,825.51x = 4,004,259,891.19
  5. Step 5: Solve for x
    x = 4,004,259,891.19/84,825.51
  6. Step 6: Final answer
    x = 47,205.85

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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.