Finding the Fourth Proportional to 75,974.74, 113,995.52 and 40,427.68
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Solution
The fourth proportional to 75,974.74, 113,995.52 and 40,427.68 is: 60,659.30
Step by Step Solution
- Step 1: Write the proportion equation
75,974.74 : 113,995.52 = 40,427.68 : x - Step 2: Convert to fraction form
75,974.74/113,995.52 = 40,427.68/x - Step 3: Cross multiply
75,974.74x = 113,995.52 × 40,427.68 - Step 4: Simplify right side
75,974.74x = 4,608,574,403.99 - Step 5: Solve for x
x = 4,608,574,403.99/75,974.74 - Step 6: Final answer
x = 60,659.30
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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.