Home / 81,238.07-121,860.25-25,073.15

Finding the Fourth Proportional to 81,238.07, 121,860.25 and 25,073.15

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Solution

The fourth proportional to 81,238.07, 121,860.25 and 25,073.15 is: 37,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,238.07 : 121,860.25 = 25,073.15 : x
  2. Step 2: Convert to fraction form
    81,238.07/121,860.25 = 25,073.15/x
  3. Step 3: Cross multiply
    81,238.07x = 121,860.25 × 25,073.15
  4. Step 4: Simplify right side
    81,238.07x = 3,055,419,655.30
  5. Step 5: Solve for x
    x = 3,055,419,655.30/81,238.07
  6. Step 6: Final answer
    x = 37,610.69

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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.