Home / 84,603.20-116,515.68-82,766.48

Finding the Fourth Proportional to 84,603.20, 116,515.68 and 82,766.48

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Solution

The fourth proportional to 84,603.20, 116,515.68 and 82,766.48 is: 113,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,603.20 : 116,515.68 = 82,766.48 : x
  2. Step 2: Convert to fraction form
    84,603.20/116,515.68 = 82,766.48/x
  3. Step 3: Cross multiply
    84,603.20x = 116,515.68 × 82,766.48
  4. Step 4: Simplify right side
    84,603.20x = 9,643,592,698.41
  5. Step 5: Solve for x
    x = 9,643,592,698.41/84,603.20
  6. Step 6: Final answer
    x = 113,986.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.