Finding the Fourth Proportional to 86,583.40, 129,811.74 and 27,385.96
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Solution
The fourth proportional to 86,583.40, 129,811.74 and 27,385.96 is: 41,058.90
Step by Step Solution
- Step 1: Write the proportion equation
86,583.40 : 129,811.74 = 27,385.96 : x - Step 2: Convert to fraction form
86,583.40/129,811.74 = 27,385.96/x - Step 3: Cross multiply
86,583.40x = 129,811.74 × 27,385.96 - Step 4: Simplify right side
86,583.40x = 3,555,019,119.17 - Step 5: Solve for x
x = 3,555,019,119.17/86,583.40 - Step 6: Final answer
x = 41,058.90
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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.