Finding the Fourth Proportional to 87,769.85, 121,122.26 and 47,483.48
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Solution
The fourth proportional to 87,769.85, 121,122.26 and 47,483.48 is: 65,527.12
Step by Step Solution
- Step 1: Write the proportion equation
87,769.85 : 121,122.26 = 47,483.48 : x - Step 2: Convert to fraction form
87,769.85/121,122.26 = 47,483.48/x - Step 3: Cross multiply
87,769.85x = 121,122.26 × 47,483.48 - Step 4: Simplify right side
87,769.85x = 5,751,305,567.24 - Step 5: Solve for x
x = 5,751,305,567.24/87,769.85 - Step 6: Final answer
x = 65,527.12
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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.