Finding the Fourth Proportional to 91,858.80, 126,755.35 and 51,576.99
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Solution
The fourth proportional to 91,858.80, 126,755.35 and 51,576.99 is: 71,170.75
Step by Step Solution
- Step 1: Write the proportion equation
91,858.80 : 126,755.35 = 51,576.99 : x - Step 2: Convert to fraction form
91,858.80/126,755.35 = 51,576.99/x - Step 3: Cross multiply
91,858.80x = 126,755.35 × 51,576.99 - Step 4: Simplify right side
91,858.80x = 6,537,659,419.40 - Step 5: Solve for x
x = 6,537,659,419.40/91,858.80 - Step 6: Final answer
x = 71,170.75
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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.