Finding the Fourth Proportional to 75,615.24, 104,174.34 and 54,357.72
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Solution
The fourth proportional to 75,615.24, 104,174.34 and 54,357.72 is: 74,888.07
Step by Step Solution
- Step 1: Write the proportion equation
75,615.24 : 104,174.34 = 54,357.72 : x - Step 2: Convert to fraction form
75,615.24/104,174.34 = 54,357.72/x - Step 3: Cross multiply
75,615.24x = 104,174.34 × 54,357.72 - Step 4: Simplify right side
75,615.24x = 5,662,679,604.90 - Step 5: Solve for x
x = 5,662,679,604.90/75,615.24 - Step 6: Final answer
x = 74,888.07
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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.