Finding the Fourth Proportional to 89,438.44, 134,116.68 and 53,431.42
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Solution
The fourth proportional to 89,438.44, 134,116.68 and 53,431.42 is: 80,122.65
Step by Step Solution
- Step 1: Write the proportion equation
89,438.44 : 134,116.68 = 53,431.42 : x - Step 2: Convert to fraction form
89,438.44/134,116.68 = 53,431.42/x - Step 3: Cross multiply
89,438.44x = 134,116.68 × 53,431.42 - Step 4: Simplify right side
89,438.44x = 7,166,044,658.09 - Step 5: Solve for x
x = 7,166,044,658.09/89,438.44 - Step 6: Final answer
x = 80,122.65
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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.