Finding the Fourth Proportional to 86,791.39, 119,766.46 and 48,544.31
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Solution
The fourth proportional to 86,791.39, 119,766.46 and 48,544.31 is: 66,987.99
Step by Step Solution
- Step 1: Write the proportion equation
86,791.39 : 119,766.46 = 48,544.31 : x - Step 2: Convert to fraction form
86,791.39/119,766.46 = 48,544.31/x - Step 3: Cross multiply
86,791.39x = 119,766.46 × 48,544.31 - Step 4: Simplify right side
86,791.39x = 5,813,980,161.84 - Step 5: Solve for x
x = 5,813,980,161.84/86,791.39 - Step 6: Final answer
x = 66,987.99
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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.