Finding the Fourth Proportional to 87,838.92, 121,217.74 and 47,552.67
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Solution
The fourth proportional to 87,838.92, 121,217.74 and 47,552.67 is: 65,622.70
Step by Step Solution
- Step 1: Write the proportion equation
87,838.92 : 121,217.74 = 47,552.67 : x - Step 2: Convert to fraction form
87,838.92/121,217.74 = 47,552.67/x - Step 3: Cross multiply
87,838.92x = 121,217.74 × 47,552.67 - Step 4: Simplify right side
87,838.92x = 5,764,227,069.48 - Step 5: Solve for x
x = 5,764,227,069.48/87,838.92 - Step 6: Final answer
x = 65,622.70
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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.