Finding the Fourth Proportional to 79,717.75, 110,015.49 and 43,907.75
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Solution
The fourth proportional to 79,717.75, 110,015.49 and 43,907.75 is: 60,595.44
Step by Step Solution
- Step 1: Write the proportion equation
79,717.75 : 110,015.49 = 43,907.75 : x - Step 2: Convert to fraction form
79,717.75/110,015.49 = 43,907.75/x - Step 3: Cross multiply
79,717.75x = 110,015.49 × 43,907.75 - Step 4: Simplify right side
79,717.75x = 4,830,532,411.51 - Step 5: Solve for x
x = 4,830,532,411.51/79,717.75 - Step 6: Final answer
x = 60,595.44
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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.