Home / 68,485.44-94,519.29-39,413.20

Finding the Fourth Proportional to 68,485.44, 94,519.29 and 39,413.20

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Solution

The fourth proportional to 68,485.44, 94,519.29 and 39,413.20 is: 54,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.44 : 94,519.29 = 39,413.20 : x
  2. Step 2: Convert to fraction form
    68,485.44/94,519.29 = 39,413.20/x
  3. Step 3: Cross multiply
    68,485.44x = 94,519.29 × 39,413.20
  4. Step 4: Simplify right side
    68,485.44x = 3,725,307,680.63
  5. Step 5: Solve for x
    x = 3,725,307,680.63/68,485.44
  6. Step 6: Final answer
    x = 54,395.62

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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.