Finding the Fourth Proportional to 75,915.09, 104,763.38 and 41,922.63
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Solution
The fourth proportional to 75,915.09, 104,763.38 and 41,922.63 is: 57,853.53
Step by Step Solution
- Step 1: Write the proportion equation
75,915.09 : 104,763.38 = 41,922.63 : x - Step 2: Convert to fraction form
75,915.09/104,763.38 = 41,922.63/x - Step 3: Cross multiply
75,915.09x = 104,763.38 × 41,922.63 - Step 4: Simplify right side
75,915.09x = 4,391,956,207.68 - Step 5: Solve for x
x = 4,391,956,207.68/75,915.09 - Step 6: Final answer
x = 57,853.53
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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.