Finding the Fourth Proportional to 91,959.44, 126,903.84 and 53,745.44
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Solution
The fourth proportional to 91,959.44, 126,903.84 and 53,745.44 is: 74,168.60
Step by Step Solution
- Step 1: Write the proportion equation
91,959.44 : 126,903.84 = 53,745.44 : x - Step 2: Convert to fraction form
91,959.44/126,903.84 = 53,745.44/x - Step 3: Cross multiply
91,959.44x = 126,903.84 × 53,745.44 - Step 4: Simplify right side
91,959.44x = 6,820,502,718.49 - Step 5: Solve for x
x = 6,820,502,718.49/91,959.44 - Step 6: Final answer
x = 74,168.60
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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.