Finding the Fourth Proportional to 86,285.44, 129,428.92 and 27,119.84
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Solution
The fourth proportional to 86,285.44, 129,428.92 and 27,119.84 is: 40,680.00
Step by Step Solution
- Step 1: Write the proportion equation
86,285.44 : 129,428.92 = 27,119.84 : x - Step 2: Convert to fraction form
86,285.44/129,428.92 = 27,119.84/x - Step 3: Cross multiply
86,285.44x = 129,428.92 × 27,119.84 - Step 4: Simplify right side
86,285.44x = 3,510,091,601.77 - Step 5: Solve for x
x = 3,510,091,601.77/86,285.44 - Step 6: Final answer
x = 40,680.00
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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.