Finding the Fourth Proportional to 75,137.09, 103,689.14 and 41,603.09
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Solution
The fourth proportional to 75,137.09, 103,689.14 and 41,603.09 is: 57,412.23
Step by Step Solution
- Step 1: Write the proportion equation
75,137.09 : 103,689.14 = 41,603.09 : x - Step 2: Convert to fraction form
75,137.09/103,689.14 = 41,603.09/x - Step 3: Cross multiply
75,137.09x = 103,689.14 × 41,603.09 - Step 4: Simplify right side
75,137.09x = 4,313,787,896.98 - Step 5: Solve for x
x = 4,313,787,896.98/75,137.09 - Step 6: Final answer
x = 57,412.23
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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.