Finding the Fourth Proportional to 91,615.23, 126,434.22 and 51,341.99
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Solution
The fourth proportional to 91,615.23, 126,434.22 and 51,341.99 is: 70,854.85
Step by Step Solution
- Step 1: Write the proportion equation
91,615.23 : 126,434.22 = 51,341.99 : x - Step 2: Convert to fraction form
91,615.23/126,434.22 = 51,341.99/x - Step 3: Cross multiply
91,615.23x = 126,434.22 × 51,341.99 - Step 4: Simplify right side
91,615.23x = 6,491,383,634.19 - Step 5: Solve for x
x = 6,491,383,634.19/91,615.23 - Step 6: Final answer
x = 70,854.85
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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.