Home / 68,841.05-103,241.70-18,922.77

Finding the Fourth Proportional to 68,841.05, 103,241.70 and 18,922.77

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Solution

The fourth proportional to 68,841.05, 103,241.70 and 18,922.77 is: 28,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,841.05 : 103,241.70 = 18,922.77 : x
  2. Step 2: Convert to fraction form
    68,841.05/103,241.70 = 18,922.77/x
  3. Step 3: Cross multiply
    68,841.05x = 103,241.70 × 18,922.77
  4. Step 4: Simplify right side
    68,841.05x = 1,953,618,943.51
  5. Step 5: Solve for x
    x = 1,953,618,943.51/68,841.05
  6. Step 6: Final answer
    x = 28,378.69

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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.