Home / 81,907.20-122,860.73-22,742.84

Finding the Fourth Proportional to 81,907.20, 122,860.73 and 22,742.84

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Solution

The fourth proportional to 81,907.20, 122,860.73 and 22,742.84 is: 34,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,907.20 : 122,860.73 = 22,742.84 : x
  2. Step 2: Convert to fraction form
    81,907.20/122,860.73 = 22,742.84/x
  3. Step 3: Cross multiply
    81,907.20x = 122,860.73 × 22,742.84
  4. Step 4: Simplify right side
    81,907.20x = 2,794,202,288.68
  5. Step 5: Solve for x
    x = 2,794,202,288.68/81,907.20
  6. Step 6: Final answer
    x = 34,114.25

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1.5x scale

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.