Finding the Fourth Proportional to 87,117.76, 130,664.34 and 27,945.74
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Solution
The fourth proportional to 87,117.76, 130,664.34 and 27,945.74 is: 41,914.66
Step by Step Solution
- Step 1: Write the proportion equation
87,117.76 : 130,664.34 = 27,945.74 : x - Step 2: Convert to fraction form
87,117.76/130,664.34 = 27,945.74/x - Step 3: Cross multiply
87,117.76x = 130,664.34 × 27,945.74 - Step 4: Simplify right side
87,117.76x = 3,651,511,672.91 - Step 5: Solve for x
x = 3,651,511,672.91/87,117.76 - Step 6: Final answer
x = 41,914.66
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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.