Home / 68,968.85-95,185.80-42,105.60

Finding the Fourth Proportional to 68,968.85, 95,185.80 and 42,105.60

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Solution

The fourth proportional to 68,968.85, 95,185.80 and 42,105.60 is: 58,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,968.85 : 95,185.80 = 42,105.60 : x
  2. Step 2: Convert to fraction form
    68,968.85/95,185.80 = 42,105.60/x
  3. Step 3: Cross multiply
    68,968.85x = 95,185.80 × 42,105.60
  4. Step 4: Simplify right side
    68,968.85x = 4,007,855,220.48
  5. Step 5: Solve for x
    x = 4,007,855,220.48/68,968.85
  6. Step 6: Final answer
    x = 58,111.10

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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.