Finding the Fourth Proportional to 86,171.09, 118,927.19 and 48,452.63
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Solution
The fourth proportional to 86,171.09, 118,927.19 and 48,452.63 is: 66,870.86
Step by Step Solution
- Step 1: Write the proportion equation
86,171.09 : 118,927.19 = 48,452.63 : x - Step 2: Convert to fraction form
86,171.09/118,927.19 = 48,452.63/x - Step 3: Cross multiply
86,171.09x = 118,927.19 × 48,452.63 - Step 4: Simplify right side
86,171.09x = 5,762,334,891.75 - Step 5: Solve for x
x = 5,762,334,891.75/86,171.09 - Step 6: Final answer
x = 66,870.86
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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.