Home / 81,083.07-121,624.62-25,674.75

Finding the Fourth Proportional to 81,083.07, 121,624.62 and 25,674.75

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Solution

The fourth proportional to 81,083.07, 121,624.62 and 25,674.75 is: 38,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.07 : 121,624.62 = 25,674.75 : x
  2. Step 2: Convert to fraction form
    81,083.07/121,624.62 = 25,674.75/x
  3. Step 3: Cross multiply
    81,083.07x = 121,624.62 × 25,674.75
  4. Step 4: Simplify right side
    81,083.07x = 3,122,681,712.35
  5. Step 5: Solve for x
    x = 3,122,681,712.35/81,083.07
  6. Step 6: Final answer
    x = 38,512.13

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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.