Home / 34,081.20-51,121.80-9,457.20

Finding the Fourth Proportional to 34,081.20, 51,121.80 and 9,457.20

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Solution

The fourth proportional to 34,081.20, 51,121.80 and 9,457.20 is: 14,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,081.20 : 51,121.80 = 9,457.20 : x
  2. Step 2: Convert to fraction form
    34,081.20/51,121.80 = 9,457.20/x
  3. Step 3: Cross multiply
    34,081.20x = 51,121.80 × 9,457.20
  4. Step 4: Simplify right side
    34,081.20x = 483,469,086.96
  5. Step 5: Solve for x
    x = 483,469,086.96/34,081.20
  6. Step 6: Final answer
    x = 14,185.80

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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.