Finding the Fourth Proportional to 68,691.22, 102,859.39 and 47,409.63
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Solution
The fourth proportional to 68,691.22, 102,859.39 and 47,409.63 is: 70,991.98
Step by Step Solution
- Step 1: Write the proportion equation
68,691.22 : 102,859.39 = 47,409.63 : x - Step 2: Convert to fraction form
68,691.22/102,859.39 = 47,409.63/x - Step 3: Cross multiply
68,691.22x = 102,859.39 × 47,409.63 - Step 4: Simplify right side
68,691.22x = 4,876,525,621.93 - Step 5: Solve for x
x = 4,876,525,621.93/68,691.22 - Step 6: Final answer
x = 70,991.98
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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.