Finding the Fourth Proportional to 81,195.89, 121,759.00 and 27,893.23
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Solution
The fourth proportional to 81,195.89, 121,759.00 and 27,893.23 is: 41,827.88
Step by Step Solution
- Step 1: Write the proportion equation
81,195.89 : 121,759.00 = 27,893.23 : x - Step 2: Convert to fraction form
81,195.89/121,759.00 = 27,893.23/x - Step 3: Cross multiply
81,195.89x = 121,759.00 × 27,893.23 - Step 4: Simplify right side
81,195.89x = 3,396,251,417.44 - Step 5: Solve for x
x = 3,396,251,417.44/81,195.89 - Step 6: Final answer
x = 41,827.88
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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.