Finding the Fourth Proportional to 68,837.22, 103,287.42 and 40,812.84
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Solution
The fourth proportional to 68,837.22, 103,287.42 and 40,812.84 is: 61,237.99
Step by Step Solution
- Step 1: Write the proportion equation
68,837.22 : 103,287.42 = 40,812.84 : x - Step 2: Convert to fraction form
68,837.22/103,287.42 = 40,812.84/x - Step 3: Cross multiply
68,837.22x = 103,287.42 × 40,812.84 - Step 4: Simplify right side
68,837.22x = 4,215,452,946.47 - Step 5: Solve for x
x = 4,215,452,946.47/68,837.22 - Step 6: Final answer
x = 61,237.99
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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.