Finding the Fourth Proportional to 76,541.98, 114,812.68 and 20,382.09
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Solution
The fourth proportional to 76,541.98, 114,812.68 and 20,382.09 is: 30,573.06
Step by Step Solution
- Step 1: Write the proportion equation
76,541.98 : 114,812.68 = 20,382.09 : x - Step 2: Convert to fraction form
76,541.98/114,812.68 = 20,382.09/x - Step 3: Cross multiply
76,541.98x = 114,812.68 × 20,382.09 - Step 4: Simplify right side
76,541.98x = 2,340,122,376.90 - Step 5: Solve for x
x = 2,340,122,376.90/76,541.98 - Step 6: Final answer
x = 30,573.06
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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.