Finding the Fourth Proportional to 87,795.49, 121,170.47 and 57,625.83
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Solution
The fourth proportional to 87,795.49, 121,170.47 and 57,625.83 is: 79,531.98
Step by Step Solution
- Step 1: Write the proportion equation
87,795.49 : 121,170.47 = 57,625.83 : x - Step 2: Convert to fraction form
87,795.49/121,170.47 = 57,625.83/x - Step 3: Cross multiply
87,795.49x = 121,170.47 × 57,625.83 - Step 4: Simplify right side
87,795.49x = 6,982,548,905.24 - Step 5: Solve for x
x = 6,982,548,905.24/87,795.49 - Step 6: Final answer
x = 79,531.98
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1.5x scale
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.