Finding the Fourth Proportional to 68,857.21, 103,329.51 and 29,414.62
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Solution
The fourth proportional to 68,857.21, 103,329.51 and 29,414.62 is: 44,140.60
Step by Step Solution
- Step 1: Write the proportion equation
68,857.21 : 103,329.51 = 29,414.62 : x - Step 2: Convert to fraction form
68,857.21/103,329.51 = 29,414.62/x - Step 3: Cross multiply
68,857.21x = 103,329.51 × 29,414.62 - Step 4: Simplify right side
68,857.21x = 3,039,398,271.44 - Step 5: Solve for x
x = 3,039,398,271.44/68,857.21 - Step 6: Final answer
x = 44,140.60
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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.