Finding the Fourth Proportional to 75,960.81, 104,828.04 and 41,971.49
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Solution
The fourth proportional to 75,960.81, 104,828.04 and 41,971.49 is: 57,921.82
Step by Step Solution
- Step 1: Write the proportion equation
75,960.81 : 104,828.04 = 41,971.49 : x - Step 2: Convert to fraction form
75,960.81/104,828.04 = 41,971.49/x - Step 3: Cross multiply
75,960.81x = 104,828.04 × 41,971.49 - Step 4: Simplify right side
75,960.81x = 4,399,788,822.72 - Step 5: Solve for x
x = 4,399,788,822.72/75,960.81 - Step 6: Final answer
x = 57,921.82
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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.