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Finding the Fourth Proportional to 68,110.30, 102,165.45 and 26,557.30

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Solution

The fourth proportional to 68,110.30, 102,165.45 and 26,557.30 is: 39,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110.30 : 102,165.45 = 26,557.30 : x
  2. Step 2: Convert to fraction form
    68,110.30/102,165.45 = 26,557.30/x
  3. Step 3: Cross multiply
    68,110.30x = 102,165.45 × 26,557.30
  4. Step 4: Simplify right side
    68,110.30x = 2,713,238,505.29
  5. Step 5: Solve for x
    x = 2,713,238,505.29/68,110.30
  6. Step 6: Final answer
    x = 39,835.95

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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.