Finding the Fourth Proportional to 89,023.78, 122,852.84 and 48,740.09
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Solution
The fourth proportional to 89,023.78, 122,852.84 and 48,740.09 is: 67,261.34
Step by Step Solution
- Step 1: Write the proportion equation
89,023.78 : 122,852.84 = 48,740.09 : x - Step 2: Convert to fraction form
89,023.78/122,852.84 = 48,740.09/x - Step 3: Cross multiply
89,023.78x = 122,852.84 × 48,740.09 - Step 4: Simplify right side
89,023.78x = 5,987,858,907.34 - Step 5: Solve for x
x = 5,987,858,907.34/89,023.78 - Step 6: Final answer
x = 67,261.34
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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.