Home / 68,543.66-102,817.52-18,623.50

Finding the Fourth Proportional to 68,543.66, 102,817.52 and 18,623.50

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Solution

The fourth proportional to 68,543.66, 102,817.52 and 18,623.50 is: 27,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,543.66 : 102,817.52 = 18,623.50 : x
  2. Step 2: Convert to fraction form
    68,543.66/102,817.52 = 18,623.50/x
  3. Step 3: Cross multiply
    68,543.66x = 102,817.52 × 18,623.50
  4. Step 4: Simplify right side
    68,543.66x = 1,914,822,083.72
  5. Step 5: Solve for x
    x = 1,914,822,083.72/68,543.66
  6. Step 6: Final answer
    x = 27,935.80

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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.