Home / 68,688.66-94,791.31-40,007.57

Finding the Fourth Proportional to 68,688.66, 94,791.31 and 40,007.57

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Solution

The fourth proportional to 68,688.66, 94,791.31 and 40,007.57 is: 55,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688.66 : 94,791.31 = 40,007.57 : x
  2. Step 2: Convert to fraction form
    68,688.66/94,791.31 = 40,007.57/x
  3. Step 3: Cross multiply
    68,688.66x = 94,791.31 × 40,007.57
  4. Step 4: Simplify right side
    68,688.66x = 3,792,370,154.48
  5. Step 5: Solve for x
    x = 3,792,370,154.48/68,688.66
  6. Step 6: Final answer
    x = 55,211.01

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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.