Finding the Fourth Proportional to 77,812.23, 116,531.25 and 44,431.14
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Solution
The fourth proportional to 77,812.23, 116,531.25 and 44,431.14 is: 66,539.88
Step by Step Solution
- Step 1: Write the proportion equation
77,812.23 : 116,531.25 = 44,431.14 : x - Step 2: Convert to fraction form
77,812.23/116,531.25 = 44,431.14/x - Step 3: Cross multiply
77,812.23x = 116,531.25 × 44,431.14 - Step 4: Simplify right side
77,812.23x = 5,177,616,283.13 - Step 5: Solve for x
x = 5,177,616,283.13/77,812.23 - Step 6: Final answer
x = 66,539.88
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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.