Home / 81,208.09-121,825.27-25,035.06

Finding the Fourth Proportional to 81,208.09, 121,825.27 and 25,035.06

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Solution

The fourth proportional to 81,208.09, 121,825.27 and 25,035.06 is: 37,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,208.09 : 121,825.27 = 25,035.06 : x
  2. Step 2: Convert to fraction form
    81,208.09/121,825.27 = 25,035.06/x
  3. Step 3: Cross multiply
    81,208.09x = 121,825.27 × 25,035.06
  4. Step 4: Simplify right side
    81,208.09x = 3,049,902,943.97
  5. Step 5: Solve for x
    x = 3,049,902,943.97/81,208.09
  6. Step 6: Final answer
    x = 37,556.64

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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.