Finding the Fourth Proportional to 68,725.26, 103,086.68 and 29,309.45
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Solution
The fourth proportional to 68,725.26, 103,086.68 and 29,309.45 is: 43,963.65
Step by Step Solution
- Step 1: Write the proportion equation
68,725.26 : 103,086.68 = 29,309.45 : x - Step 2: Convert to fraction form
68,725.26/103,086.68 = 29,309.45/x - Step 3: Cross multiply
68,725.26x = 103,086.68 × 29,309.45 - Step 4: Simplify right side
68,725.26x = 3,021,413,231.15 - Step 5: Solve for x
x = 3,021,413,231.15/68,725.26 - Step 6: Final answer
x = 43,963.65
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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.