Finding the Fourth Proportional to 77,911.88, 116,896.97 and 40,448.57
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Solution
The fourth proportional to 77,911.88, 116,896.97 and 40,448.57 is: 60,687.99
Step by Step Solution
- Step 1: Write the proportion equation
77,911.88 : 116,896.97 = 40,448.57 : x - Step 2: Convert to fraction form
77,911.88/116,896.97 = 40,448.57/x - Step 3: Cross multiply
77,911.88x = 116,896.97 × 40,448.57 - Step 4: Simplify right side
77,911.88x = 4,728,314,790.47 - Step 5: Solve for x
x = 4,728,314,790.47/77,911.88 - Step 6: Final answer
x = 60,687.99
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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.