Finding the Fourth Proportional to 85,531.77, 128,302.92 and 32,941.31
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Solution
The fourth proportional to 85,531.77, 128,302.92 and 32,941.31 is: 49,413.99
Step by Step Solution
- Step 1: Write the proportion equation
85,531.77 : 128,302.92 = 32,941.31 : x - Step 2: Convert to fraction form
85,531.77/128,302.92 = 32,941.31/x - Step 3: Cross multiply
85,531.77x = 128,302.92 × 32,941.31 - Step 4: Simplify right side
85,531.77x = 4,226,465,620.11 - Step 5: Solve for x
x = 4,226,465,620.11/85,531.77 - Step 6: Final answer
x = 49,413.99
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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.