Home / 68,618.02-102,912.60-19,358.50

Finding the Fourth Proportional to 68,618.02, 102,912.60 and 19,358.50

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Solution

The fourth proportional to 68,618.02, 102,912.60 and 19,358.50 is: 29,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618.02 : 102,912.60 = 19,358.50 : x
  2. Step 2: Convert to fraction form
    68,618.02/102,912.60 = 19,358.50/x
  3. Step 3: Cross multiply
    68,618.02x = 102,912.60 × 19,358.50
  4. Step 4: Simplify right side
    68,618.02x = 1,992,233,567.10
  5. Step 5: Solve for x
    x = 1,992,233,567.10/68,618.02
  6. Step 6: Final answer
    x = 29,033.68

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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.