Finding the Fourth Proportional to 75,974.96, 104,851.76 and 41,990.08
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Solution
The fourth proportional to 75,974.96, 104,851.76 and 41,990.08 is: 57,949.80
Step by Step Solution
- Step 1: Write the proportion equation
75,974.96 : 104,851.76 = 41,990.08 : x - Step 2: Convert to fraction form
75,974.96/104,851.76 = 41,990.08/x - Step 3: Cross multiply
75,974.96x = 104,851.76 × 41,990.08 - Step 4: Simplify right side
75,974.96x = 4,402,733,928.05 - Step 5: Solve for x
x = 4,402,733,928.05/75,974.96 - Step 6: Final answer
x = 57,949.80
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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.