Finding the Fourth Proportional to 68,414.85, 102,622.26 and 49,813.26
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Solution
The fourth proportional to 68,414.85, 102,622.26 and 49,813.26 is: 74,719.88
Step by Step Solution
- Step 1: Write the proportion equation
68,414.85 : 102,622.26 = 49,813.26 : x - Step 2: Convert to fraction form
68,414.85/102,622.26 = 49,813.26/x - Step 3: Cross multiply
68,414.85x = 102,622.26 × 49,813.26 - Step 4: Simplify right side
68,414.85x = 5,111,949,319.17 - Step 5: Solve for x
x = 5,111,949,319.17/68,414.85 - Step 6: Final answer
x = 74,719.88
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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.