Finding the Fourth Proportional to 87,796.75, 121,159.36 and 49,564.34
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Solution
The fourth proportional to 87,796.75, 121,159.36 and 49,564.34 is: 68,398.70
Step by Step Solution
- Step 1: Write the proportion equation
87,796.75 : 121,159.36 = 49,564.34 : x - Step 2: Convert to fraction form
87,796.75/121,159.36 = 49,564.34/x - Step 3: Cross multiply
87,796.75x = 121,159.36 × 49,564.34 - Step 4: Simplify right side
87,796.75x = 6,005,183,713.22 - Step 5: Solve for x
x = 6,005,183,713.22/87,796.75 - Step 6: Final answer
x = 68,398.70
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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.