Finding the Fourth Proportional to 75,012.09, 103,516.43 and 41,478.09
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Solution
The fourth proportional to 75,012.09, 103,516.43 and 41,478.09 is: 57,239.62
Step by Step Solution
- Step 1: Write the proportion equation
75,012.09 : 103,516.43 = 41,478.09 : x - Step 2: Convert to fraction form
75,012.09/103,516.43 = 41,478.09/x - Step 3: Cross multiply
75,012.09x = 103,516.43 × 41,478.09 - Step 4: Simplify right side
75,012.09x = 4,293,663,592.63 - Step 5: Solve for x
x = 4,293,663,592.63/75,012.09 - Step 6: Final answer
x = 57,239.62
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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.