Home / 68,621.44-102,847.38-40,513

Finding the Fourth Proportional to 68,621.44, 102,847.38 and 40,513

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Solution

The fourth proportional to 68,621.44, 102,847.38 and 40,513 is: 60,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,621.44 : 102,847.38 = 40,513 : x
  2. Step 2: Convert to fraction form
    68,621.44/102,847.38 = 40,513/x
  3. Step 3: Cross multiply
    68,621.44x = 102,847.38 × 40,513
  4. Step 4: Simplify right side
    68,621.44x = 4,166,655,905.94
  5. Step 5: Solve for x
    x = 4,166,655,905.94/68,621.44
  6. Step 6: Final answer
    x = 60,719.45

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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.