Finding the Fourth Proportional to 75,740.76, 113,737.08 and 47,343.48
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Solution
The fourth proportional to 75,740.76, 113,737.08 and 47,343.48 is: 71,093.94
Step by Step Solution
- Step 1: Write the proportion equation
75,740.76 : 113,737.08 = 47,343.48 : x - Step 2: Convert to fraction form
75,740.76/113,737.08 = 47,343.48/x - Step 3: Cross multiply
75,740.76x = 113,737.08 × 47,343.48 - Step 4: Simplify right side
75,740.76x = 5,384,709,172.24 - Step 5: Solve for x
x = 5,384,709,172.24/75,740.76 - Step 6: Final answer
x = 71,093.94
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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.