Finding the Fourth Proportional to 87,852.91, 121,236.83 and 47,566.70
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Solution
The fourth proportional to 87,852.91, 121,236.83 and 47,566.70 is: 65,641.95
Step by Step Solution
- Step 1: Write the proportion equation
87,852.91 : 121,236.83 = 47,566.70 : x - Step 2: Convert to fraction form
87,852.91/121,236.83 = 47,566.70/x - Step 3: Cross multiply
87,852.91x = 121,236.83 × 47,566.70 - Step 4: Simplify right side
87,852.91x = 5,766,835,921.56 - Step 5: Solve for x
x = 5,766,835,921.56/87,852.91 - Step 6: Final answer
x = 65,641.95
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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.