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Finding the Fourth Proportional to 68,660.33, 103,163.01 and 43,711.52

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Solution

The fourth proportional to 68,660.33, 103,163.01 and 43,711.52 is: 65,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,660.33 : 103,163.01 = 43,711.52 : x
  2. Step 2: Convert to fraction form
    68,660.33/103,163.01 = 43,711.52/x
  3. Step 3: Cross multiply
    68,660.33x = 103,163.01 × 43,711.52
  4. Step 4: Simplify right side
    68,660.33x = 4,509,411,459.06
  5. Step 5: Solve for x
    x = 4,509,411,459.06/68,660.33
  6. Step 6: Final answer
    x = 65,677.11

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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.