Home / 68,916.92-103,393.20-28,914.44

Finding the Fourth Proportional to 68,916.92, 103,393.20 and 28,914.44

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Solution

The fourth proportional to 68,916.92, 103,393.20 and 28,914.44 is: 43,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,916.92 : 103,393.20 = 28,914.44 : x
  2. Step 2: Convert to fraction form
    68,916.92/103,393.20 = 28,914.44/x
  3. Step 3: Cross multiply
    68,916.92x = 103,393.20 × 28,914.44
  4. Step 4: Simplify right side
    68,916.92x = 2,989,556,477.81
  5. Step 5: Solve for x
    x = 2,989,556,477.81/68,916.92
  6. Step 6: Final answer
    x = 43,379.14

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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.