Home / 85,694.22-118,260-49,890.60

Finding the Fourth Proportional to 85,694.22, 118,260 and 49,890.60

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Solution

The fourth proportional to 85,694.22, 118,260 and 49,890.60 is: 68,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,694.22 : 118,260 = 49,890.60 : x
  2. Step 2: Convert to fraction form
    85,694.22/118,260 = 49,890.60/x
  3. Step 3: Cross multiply
    85,694.22x = 118,260 × 49,890.60
  4. Step 4: Simplify right side
    85,694.22x = 5,900,062,356
  5. Step 5: Solve for x
    x = 5,900,062,356/85,694.22
  6. Step 6: Final answer
    x = 68,850.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.