Finding the Fourth Proportional to 81,591.21, 122,270.18 and 46,458.27
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Solution
The fourth proportional to 81,591.21, 122,270.18 and 46,458.27 is: 69,620.99
Step by Step Solution
- Step 1: Write the proportion equation
81,591.21 : 122,270.18 = 46,458.27 : x - Step 2: Convert to fraction form
81,591.21/122,270.18 = 46,458.27/x - Step 3: Cross multiply
81,591.21x = 122,270.18 × 46,458.27 - Step 4: Simplify right side
81,591.21x = 5,680,460,803.10 - Step 5: Solve for x
x = 5,680,460,803.10/81,591.21 - Step 6: Final answer
x = 69,620.99
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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.