Finding the Fourth Proportional to 89,229.21, 133,816.47 and 30,048.99
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Solution
The fourth proportional to 89,229.21, 133,816.47 and 30,048.99 is: 45,064.28
Step by Step Solution
- Step 1: Write the proportion equation
89,229.21 : 133,816.47 = 30,048.99 : x - Step 2: Convert to fraction form
89,229.21/133,816.47 = 30,048.99/x - Step 3: Cross multiply
89,229.21x = 133,816.47 × 30,048.99 - Step 4: Simplify right side
89,229.21x = 4,021,049,768.87 - Step 5: Solve for x
x = 4,021,049,768.87/89,229.21 - Step 6: Final answer
x = 45,064.28
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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.