Finding the Fourth Proportional to 93,921.11, 129,782.97 and 68,383.14
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Solution
The fourth proportional to 93,921.11, 129,782.97 and 68,383.14 is: 94,493.85
Step by Step Solution
- Step 1: Write the proportion equation
93,921.11 : 129,782.97 = 68,383.14 : x - Step 2: Convert to fraction form
93,921.11/129,782.97 = 68,383.14/x - Step 3: Cross multiply
93,921.11x = 129,782.97 × 68,383.14 - Step 4: Simplify right side
93,921.11x = 8,874,967,007.13 - Step 5: Solve for x
x = 8,874,967,007.13/93,921.11 - Step 6: Final answer
x = 94,493.85
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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.