Finding the Fourth Proportional to 68,414.40, 102,619.35 and 30,974.48
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Solution
The fourth proportional to 68,414.40, 102,619.35 and 30,974.48 is: 46,460.69
Step by Step Solution
- Step 1: Write the proportion equation
68,414.40 : 102,619.35 = 30,974.48 : x - Step 2: Convert to fraction form
68,414.40/102,619.35 = 30,974.48/x - Step 3: Cross multiply
68,414.40x = 102,619.35 × 30,974.48 - Step 4: Simplify right side
68,414.40x = 3,178,580,491.09 - Step 5: Solve for x
x = 3,178,580,491.09/68,414.40 - Step 6: Final answer
x = 46,460.69
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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.