Finding the Fourth Proportional to 86,172.39, 118,915.38 and 52,200.99
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Solution
The fourth proportional to 86,172.39, 118,915.38 and 52,200.99 is: 72,035.84
Step by Step Solution
- Step 1: Write the proportion equation
86,172.39 : 118,915.38 = 52,200.99 : x - Step 2: Convert to fraction form
86,172.39/118,915.38 = 52,200.99/x - Step 3: Cross multiply
86,172.39x = 118,915.38 × 52,200.99 - Step 4: Simplify right side
86,172.39x = 6,207,500,562.23 - Step 5: Solve for x
x = 6,207,500,562.23/86,172.39 - Step 6: Final answer
x = 72,035.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.