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Finding the Fourth Proportional to 68,376.85, 102,602.09 and 33,316.51

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Solution

The fourth proportional to 68,376.85, 102,602.09 and 33,316.51 is: 49,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,376.85 : 102,602.09 = 33,316.51 : x
  2. Step 2: Convert to fraction form
    68,376.85/102,602.09 = 33,316.51/x
  3. Step 3: Cross multiply
    68,376.85x = 102,602.09 × 33,316.51
  4. Step 4: Simplify right side
    68,376.85x = 3,418,343,557.51
  5. Step 5: Solve for x
    x = 3,418,343,557.51/68,376.85
  6. Step 6: Final answer
    x = 49,992.70

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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.