Finding the Fourth Proportional to 76,803.85, 115,257.66 and 26,884.36
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Solution
The fourth proportional to 76,803.85, 115,257.66 and 26,884.36 is: 40,344.70
Step by Step Solution
- Step 1: Write the proportion equation
76,803.85 : 115,257.66 = 26,884.36 : x - Step 2: Convert to fraction form
76,803.85/115,257.66 = 26,884.36/x - Step 3: Cross multiply
76,803.85x = 115,257.66 × 26,884.36 - Step 4: Simplify right side
76,803.85x = 3,098,628,424.20 - Step 5: Solve for x
x = 3,098,628,424.20/76,803.85 - Step 6: Final answer
x = 40,344.70
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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.