Finding the Fourth Proportional to 77,347.92, 106,716.16 and 43,351.68
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Solution
The fourth proportional to 77,347.92, 106,716.16 and 43,351.68 is: 59,811.88
Step by Step Solution
- Step 1: Write the proportion equation
77,347.92 : 106,716.16 = 43,351.68 : x - Step 2: Convert to fraction form
77,347.92/106,716.16 = 43,351.68/x - Step 3: Cross multiply
77,347.92x = 106,716.16 × 43,351.68 - Step 4: Simplify right side
77,347.92x = 4,626,324,819.15 - Step 5: Solve for x
x = 4,626,324,819.15/77,347.92 - Step 6: Final answer
x = 59,811.88
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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.