Home / 68,516.24-102,781.20-18,597.14

Finding the Fourth Proportional to 68,516.24, 102,781.20 and 18,597.14

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Solution

The fourth proportional to 68,516.24, 102,781.20 and 18,597.14 is: 27,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,516.24 : 102,781.20 = 18,597.14 : x
  2. Step 2: Convert to fraction form
    68,516.24/102,781.20 = 18,597.14/x
  3. Step 3: Cross multiply
    68,516.24x = 102,781.20 × 18,597.14
  4. Step 4: Simplify right side
    68,516.24x = 1,911,436,365.77
  5. Step 5: Solve for x
    x = 1,911,436,365.77/68,516.24
  6. Step 6: Final answer
    x = 27,897.57

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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.