Home / 68,215.60-102,542.10-48,629.80

Finding the Fourth Proportional to 68,215.60, 102,542.10 and 48,629.80

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Solution

The fourth proportional to 68,215.60, 102,542.10 and 48,629.80 is: 73,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,215.60 : 102,542.10 = 48,629.80 : x
  2. Step 2: Convert to fraction form
    68,215.60/102,542.10 = 48,629.80/x
  3. Step 3: Cross multiply
    68,215.60x = 102,542.10 × 48,629.80
  4. Step 4: Simplify right side
    68,215.60x = 4,986,601,814.58
  5. Step 5: Solve for x
    x = 4,986,601,814.58/68,215.60
  6. Step 6: Final answer
    x = 73,100.61

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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.