Finding the Fourth Proportional to 81,177.75, 121,768.45 and 27,869.63
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Solution
The fourth proportional to 81,177.75, 121,768.45 and 27,869.63 is: 41,805.06
Step by Step Solution
- Step 1: Write the proportion equation
81,177.75 : 121,768.45 = 27,869.63 : x - Step 2: Convert to fraction form
81,177.75/121,768.45 = 27,869.63/x - Step 3: Cross multiply
81,177.75x = 121,768.45 × 27,869.63 - Step 4: Simplify right side
81,177.75x = 3,393,640,968.66 - Step 5: Solve for x
x = 3,393,640,968.66/81,177.75 - Step 6: Final answer
x = 41,805.06
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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.