Finding the Fourth Proportional to 91,672.26, 126,505.29 and 51,388.63
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Solution
The fourth proportional to 91,672.26, 126,505.29 and 51,388.63 is: 70,914.95
Step by Step Solution
- Step 1: Write the proportion equation
91,672.26 : 126,505.29 = 51,388.63 : x - Step 2: Convert to fraction form
91,672.26/126,505.29 = 51,388.63/x - Step 3: Cross multiply
91,672.26x = 126,505.29 × 51,388.63 - Step 4: Simplify right side
91,672.26x = 6,500,933,417.30 - Step 5: Solve for x
x = 6,500,933,417.30/91,672.26 - Step 6: Final answer
x = 70,914.95
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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.