Finding the Fourth Proportional to 89,775.84, 123,890.97 and 48,939.75
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Solution
The fourth proportional to 89,775.84, 123,890.97 and 48,939.75 is: 67,537.02
Step by Step Solution
- Step 1: Write the proportion equation
89,775.84 : 123,890.97 = 48,939.75 : x - Step 2: Convert to fraction form
89,775.84/123,890.97 = 48,939.75/x - Step 3: Cross multiply
89,775.84x = 123,890.97 × 48,939.75 - Step 4: Simplify right side
89,775.84x = 6,063,193,099.06 - Step 5: Solve for x
x = 6,063,193,099.06/89,775.84 - Step 6: Final answer
x = 67,537.02
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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.