Home / 84,486.14-126,713.07-25,321.80

Finding the Fourth Proportional to 84,486.14, 126,713.07 and 25,321.80

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Solution

The fourth proportional to 84,486.14, 126,713.07 and 25,321.80 is: 37,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.14 : 126,713.07 = 25,321.80 : x
  2. Step 2: Convert to fraction form
    84,486.14/126,713.07 = 25,321.80/x
  3. Step 3: Cross multiply
    84,486.14x = 126,713.07 × 25,321.80
  4. Step 4: Simplify right side
    84,486.14x = 3,208,603,015.93
  5. Step 5: Solve for x
    x = 3,208,603,015.93/84,486.14
  6. Step 6: Final answer
    x = 37,977.86

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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.