Finding the Fourth Proportional to 91,723.36, 126,519.96 and 66,267.09
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Solution
The fourth proportional to 91,723.36, 126,519.96 and 66,267.09 is: 91,406.48
Step by Step Solution
- Step 1: Write the proportion equation
91,723.36 : 126,519.96 = 66,267.09 : x - Step 2: Convert to fraction form
91,723.36/126,519.96 = 66,267.09/x - Step 3: Cross multiply
91,723.36x = 126,519.96 × 66,267.09 - Step 4: Simplify right side
91,723.36x = 8,384,109,576.12 - Step 5: Solve for x
x = 8,384,109,576.12/91,723.36 - Step 6: Final answer
x = 91,406.48
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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.