Finding the Fourth Proportional to 68,142.22, 102,214.25 and 21,395.09
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Solution
The fourth proportional to 68,142.22, 102,214.25 and 21,395.09 is: 32,092.92
Step by Step Solution
- Step 1: Write the proportion equation
68,142.22 : 102,214.25 = 21,395.09 : x - Step 2: Convert to fraction form
68,142.22/102,214.25 = 21,395.09/x - Step 3: Cross multiply
68,142.22x = 102,214.25 × 21,395.09 - Step 4: Simplify right side
68,142.22x = 2,186,883,078.03 - Step 5: Solve for x
x = 2,186,883,078.03/68,142.22 - Step 6: Final answer
x = 32,092.92
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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.