Finding the Fourth Proportional to 76,911.20, 115,366.80 and 24,324.80
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Solution
The fourth proportional to 76,911.20, 115,366.80 and 24,324.80 is: 36,487.20
Step by Step Solution
- Step 1: Write the proportion equation
76,911.20 : 115,366.80 = 24,324.80 : x - Step 2: Convert to fraction form
76,911.20/115,366.80 = 24,324.80/x - Step 3: Cross multiply
76,911.20x = 115,366.80 × 24,324.80 - Step 4: Simplify right side
76,911.20x = 2,806,274,336.64 - Step 5: Solve for x
x = 2,806,274,336.64/76,911.20 - Step 6: Final answer
x = 36,487.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.