Finding the Fourth Proportional to 96,658.65, 133,390.05 and 53,638.99
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Solution
The fourth proportional to 96,658.65, 133,390.05 and 53,638.99 is: 74,022.42
Step by Step Solution
- Step 1: Write the proportion equation
96,658.65 : 133,390.05 = 53,638.99 : x - Step 2: Convert to fraction form
96,658.65/133,390.05 = 53,638.99/x - Step 3: Cross multiply
96,658.65x = 133,390.05 × 53,638.99 - Step 4: Simplify right side
96,658.65x = 7,154,907,023.43 - Step 5: Solve for x
x = 7,154,907,023.43/96,658.65 - Step 6: Final answer
x = 74,022.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.