Finding the Fourth Proportional to 84,135.57, 126,176.05 and 27,960.58
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Solution
The fourth proportional to 84,135.57, 126,176.05 and 27,960.58 is: 41,931.80
Step by Step Solution
- Step 1: Write the proportion equation
84,135.57 : 126,176.05 = 27,960.58 : x - Step 2: Convert to fraction form
84,135.57/126,176.05 = 27,960.58/x - Step 3: Cross multiply
84,135.57x = 126,176.05 × 27,960.58 - Step 4: Simplify right side
84,135.57x = 3,527,955,540.11 - Step 5: Solve for x
x = 3,527,955,540.11/84,135.57 - Step 6: Final answer
x = 41,931.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.