Finding the Fourth Proportional to 75,313.92, 103,942.08 and 41,782.08
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Solution
The fourth proportional to 75,313.92, 103,942.08 and 41,782.08 is: 57,664.19
Step by Step Solution
- Step 1: Write the proportion equation
75,313.92 : 103,942.08 = 41,782.08 : x - Step 2: Convert to fraction form
75,313.92/103,942.08 = 41,782.08/x - Step 3: Cross multiply
75,313.92x = 103,942.08 × 41,782.08 - Step 4: Simplify right side
75,313.92x = 4,342,916,301.93 - Step 5: Solve for x
x = 4,342,916,301.93/75,313.92 - Step 6: Final answer
x = 57,664.19
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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.