Finding the Fourth Proportional to 91,564.36, 126,344.20 and 51,279.84
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Solution
The fourth proportional to 91,564.36, 126,344.20 and 51,279.84 is: 70,757.99
Step by Step Solution
- Step 1: Write the proportion equation
91,564.36 : 126,344.20 = 51,279.84 : x - Step 2: Convert to fraction form
91,564.36/126,344.20 = 51,279.84/x - Step 3: Cross multiply
91,564.36x = 126,344.20 × 51,279.84 - Step 4: Simplify right side
91,564.36x = 6,478,910,360.93 - Step 5: Solve for x
x = 6,478,910,360.93/91,564.36 - Step 6: Final answer
x = 70,757.99
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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.