Finding the Fourth Proportional to 87,770.31, 121,071.07 and 53,794.05
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Solution
The fourth proportional to 87,770.31, 121,071.07 and 53,794.05 is: 74,203.94
Step by Step Solution
- Step 1: Write the proportion equation
87,770.31 : 121,071.07 = 53,794.05 : x - Step 2: Convert to fraction form
87,770.31/121,071.07 = 53,794.05/x - Step 3: Cross multiply
87,770.31x = 121,071.07 × 53,794.05 - Step 4: Simplify right side
87,770.31x = 6,512,903,193.13 - Step 5: Solve for x
x = 6,512,903,193.13/87,770.31 - Step 6: Final answer
x = 74,203.94
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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.