Finding the Fourth Proportional to 88,897.36, 122,467.44 and 61,990.96
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Solution
The fourth proportional to 88,897.36, 122,467.44 and 61,990.96 is: 85,400.45
Step by Step Solution
- Step 1: Write the proportion equation
88,897.36 : 122,467.44 = 61,990.96 : x - Step 2: Convert to fraction form
88,897.36/122,467.44 = 61,990.96/x - Step 3: Cross multiply
88,897.36x = 122,467.44 × 61,990.96 - Step 4: Simplify right side
88,897.36x = 7,591,874,174.34 - Step 5: Solve for x
x = 7,591,874,174.34/88,897.36 - Step 6: Final answer
x = 85,400.45
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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.