Finding the Fourth Proportional to 84,021.88, 115,952.82 and 48,218.44
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Solution
The fourth proportional to 84,021.88, 115,952.82 and 48,218.44 is: 66,542.95
Step by Step Solution
- Step 1: Write the proportion equation
84,021.88 : 115,952.82 = 48,218.44 : x - Step 2: Convert to fraction form
84,021.88/115,952.82 = 48,218.44/x - Step 3: Cross multiply
84,021.88x = 115,952.82 × 48,218.44 - Step 4: Simplify right side
84,021.88x = 5,591,064,094.00 - Step 5: Solve for x
x = 5,591,064,094.00/84,021.88 - Step 6: Final answer
x = 66,542.95
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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.