Home / 81,349.85-122,012.46-22,190.18

Finding the Fourth Proportional to 81,349.85, 122,012.46 and 22,190.18

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Solution

The fourth proportional to 81,349.85, 122,012.46 and 22,190.18 is: 33,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.85 : 122,012.46 = 22,190.18 : x
  2. Step 2: Convert to fraction form
    81,349.85/122,012.46 = 22,190.18/x
  3. Step 3: Cross multiply
    81,349.85x = 122,012.46 × 22,190.18
  4. Step 4: Simplify right side
    81,349.85x = 2,707,477,839.58
  5. Step 5: Solve for x
    x = 2,707,477,839.58/81,349.85
  6. Step 6: Final answer
    x = 33,281.90

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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.