Finding the Fourth Proportional to 75,215.50, 112,830.74 and 27,843.26
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Solution
The fourth proportional to 75,215.50, 112,830.74 and 27,843.26 is: 41,767.66
Step by Step Solution
- Step 1: Write the proportion equation
75,215.50 : 112,830.74 = 27,843.26 : x - Step 2: Convert to fraction form
75,215.50/112,830.74 = 27,843.26/x - Step 3: Cross multiply
75,215.50x = 112,830.74 × 27,843.26 - Step 4: Simplify right side
75,215.50x = 3,141,575,629.81 - Step 5: Solve for x
x = 3,141,575,629.81/75,215.50 - Step 6: Final answer
x = 41,767.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.