Finding the Fourth Proportional to 75,635.31, 104,409.03 and 53,845.65
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Solution
The fourth proportional to 75,635.31, 104,409.03 and 53,845.65 is: 74,329.99
Step by Step Solution
- Step 1: Write the proportion equation
75,635.31 : 104,409.03 = 53,845.65 : x - Step 2: Convert to fraction form
75,635.31/104,409.03 = 53,845.65/x - Step 3: Cross multiply
75,635.31x = 104,409.03 × 53,845.65 - Step 4: Simplify right side
75,635.31x = 5,621,972,086.22 - Step 5: Solve for x
x = 5,621,972,086.22/75,635.31 - Step 6: Final answer
x = 74,329.99
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1.5x scale
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.