Finding the Fourth Proportional to 85,078.19, 117,414.68 and 49,268.84
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Solution
The fourth proportional to 85,078.19, 117,414.68 and 49,268.84 is: 67,994.92
Step by Step Solution
- Step 1: Write the proportion equation
85,078.19 : 117,414.68 = 49,268.84 : x - Step 2: Convert to fraction form
85,078.19/117,414.68 = 49,268.84/x - Step 3: Cross multiply
85,078.19x = 117,414.68 × 49,268.84 - Step 4: Simplify right side
85,078.19x = 5,784,884,249.15 - Step 5: Solve for x
x = 5,784,884,249.15/85,078.19 - Step 6: Final answer
x = 67,994.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.