Finding the Fourth Proportional to 76,912.20, 115,368.30 and 24,325.80
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Solution
The fourth proportional to 76,912.20, 115,368.30 and 24,325.80 is: 36,488.70
Step by Step Solution
- Step 1: Write the proportion equation
76,912.20 : 115,368.30 = 24,325.80 : x - Step 2: Convert to fraction form
76,912.20/115,368.30 = 24,325.80/x - Step 3: Cross multiply
76,912.20x = 115,368.30 × 24,325.80 - Step 4: Simplify right side
76,912.20x = 2,806,426,192.14 - Step 5: Solve for x
x = 2,806,426,192.14/76,912.20 - Step 6: Final answer
x = 36,488.70
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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.