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Finding the Fourth Proportional to 68,656.55, 102,860.49 and 57,634.07

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Solution

The fourth proportional to 68,656.55, 102,860.49 and 57,634.07 is: 86,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,656.55 : 102,860.49 = 57,634.07 : x
  2. Step 2: Convert to fraction form
    68,656.55/102,860.49 = 57,634.07/x
  3. Step 3: Cross multiply
    68,656.55x = 102,860.49 × 57,634.07
  4. Step 4: Simplify right side
    68,656.55x = 5,928,268,680.89
  5. Step 5: Solve for x
    x = 5,928,268,680.89/68,656.55
  6. Step 6: Final answer
    x = 86,346.73

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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.