Finding the Fourth Proportional to 88,145.77, 121,640.49 and 47,858.74
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Solution
The fourth proportional to 88,145.77, 121,640.49 and 47,858.74 is: 66,044.70
Step by Step Solution
- Step 1: Write the proportion equation
88,145.77 : 121,640.49 = 47,858.74 : x - Step 2: Convert to fraction form
88,145.77/121,640.49 = 47,858.74/x - Step 3: Cross multiply
88,145.77x = 121,640.49 × 47,858.74 - Step 4: Simplify right side
88,145.77x = 5,821,560,584.38 - Step 5: Solve for x
x = 5,821,560,584.38/88,145.77 - Step 6: Final answer
x = 66,044.70
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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.