Finding the Fourth Proportional to 75,678.83, 113,518.09 and 41,965.44
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Solution
The fourth proportional to 75,678.83, 113,518.09 and 41,965.44 is: 62,948.07
Step by Step Solution
- Step 1: Write the proportion equation
75,678.83 : 113,518.09 = 41,965.44 : x - Step 2: Convert to fraction form
75,678.83/113,518.09 = 41,965.44/x - Step 3: Cross multiply
75,678.83x = 113,518.09 × 41,965.44 - Step 4: Simplify right side
75,678.83x = 4,763,836,594.81 - Step 5: Solve for x
x = 4,763,836,594.81/75,678.83 - Step 6: Final answer
x = 62,948.07
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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.