Finding the Fourth Proportional to 75,397.92, 113,135.76 and 31,057.44
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Solution
The fourth proportional to 75,397.92, 113,135.76 and 31,057.44 is: 46,602.18
Step by Step Solution
- Step 1: Write the proportion equation
75,397.92 : 113,135.76 = 31,057.44 : x - Step 2: Convert to fraction form
75,397.92/113,135.76 = 31,057.44/x - Step 3: Cross multiply
75,397.92x = 113,135.76 × 31,057.44 - Step 4: Simplify right side
75,397.92x = 3,513,707,078.05 - Step 5: Solve for x
x = 3,513,707,078.05/75,397.92 - Step 6: Final answer
x = 46,602.18
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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.