Finding the Fourth Proportional to 87,798.53, 121,161.97 and 47,512.29
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Solution
The fourth proportional to 87,798.53, 121,161.97 and 47,512.29 is: 65,566.96
Step by Step Solution
- Step 1: Write the proportion equation
87,798.53 : 121,161.97 = 47,512.29 : x - Step 2: Convert to fraction form
87,798.53/121,161.97 = 47,512.29/x - Step 3: Cross multiply
87,798.53x = 121,161.97 × 47,512.29 - Step 4: Simplify right side
87,798.53x = 5,756,682,655.61 - Step 5: Solve for x
x = 5,756,682,655.61/87,798.53 - Step 6: Final answer
x = 65,566.96
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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.