Finding the Fourth Proportional to 87,717.52, 121,050.26 and 47,431.26
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Solution
The fourth proportional to 87,717.52, 121,050.26 and 47,431.26 is: 65,455.18
Step by Step Solution
- Step 1: Write the proportion equation
87,717.52 : 121,050.26 = 47,431.26 : x - Step 2: Convert to fraction form
87,717.52/121,050.26 = 47,431.26/x - Step 3: Cross multiply
87,717.52x = 121,050.26 × 47,431.26 - Step 4: Simplify right side
87,717.52x = 5,741,566,355.13 - Step 5: Solve for x
x = 5,741,566,355.13/87,717.52 - Step 6: Final answer
x = 65,455.18
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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.