Finding the Fourth Proportional to 75,138.08, 103,693.76 and 41,604.08
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Solution
The fourth proportional to 75,138.08, 103,693.76 and 41,604.08 is: 57,415.41
Step by Step Solution
- Step 1: Write the proportion equation
75,138.08 : 103,693.76 = 41,604.08 : x - Step 2: Convert to fraction form
75,138.08/103,693.76 = 41,604.08/x - Step 3: Cross multiply
75,138.08x = 103,693.76 × 41,604.08 - Step 4: Simplify right side
75,138.08x = 4,314,083,486.54 - Step 5: Solve for x
x = 4,314,083,486.54/75,138.08 - Step 6: Final answer
x = 57,415.41
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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.