Finding the Fourth Proportional to 88,158.83, 121,658.81 and 47,872.26
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Solution
The fourth proportional to 88,158.83, 121,658.81 and 47,872.26 is: 66,063.52
Step by Step Solution
- Step 1: Write the proportion equation
88,158.83 : 121,658.81 = 47,872.26 : x - Step 2: Convert to fraction form
88,158.83/121,658.81 = 47,872.26/x - Step 3: Cross multiply
88,158.83x = 121,658.81 × 47,872.26 - Step 4: Simplify right side
88,158.83x = 5,824,081,944.25 - Step 5: Solve for x
x = 5,824,081,944.25/88,158.83 - Step 6: Final answer
x = 66,063.52
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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.