Home / 81,396.04-122,074.92-22,217.62

Finding the Fourth Proportional to 81,396.04, 122,074.92 and 22,217.62

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Solution

The fourth proportional to 81,396.04, 122,074.92 and 22,217.62 is: 33,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,396.04 : 122,074.92 = 22,217.62 : x
  2. Step 2: Convert to fraction form
    81,396.04/122,074.92 = 22,217.62/x
  3. Step 3: Cross multiply
    81,396.04x = 122,074.92 × 22,217.62
  4. Step 4: Simplify right side
    81,396.04x = 2,712,214,184.09
  5. Step 5: Solve for x
    x = 2,712,214,184.09/81,396.04
  6. Step 6: Final answer
    x = 33,321.21

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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.