Finding the Fourth Proportional to 77,709.36, 116,539.34 and 33,324.18
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Solution
The fourth proportional to 77,709.36, 116,539.34 and 33,324.18 is: 49,975.68
Step by Step Solution
- Step 1: Write the proportion equation
77,709.36 : 116,539.34 = 33,324.18 : x - Step 2: Convert to fraction form
77,709.36/116,539.34 = 33,324.18/x - Step 3: Cross multiply
77,709.36x = 116,539.34 × 33,324.18 - Step 4: Simplify right side
77,709.36x = 3,883,577,943.24 - Step 5: Solve for x
x = 3,883,577,943.24/77,709.36 - Step 6: Final answer
x = 49,975.68
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1.5x scale
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.