Finding the Fourth Proportional to 89,689.48, 134,441.90 and 39,793.08
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Solution
The fourth proportional to 89,689.48, 134,441.90 and 39,793.08 is: 59,648.66
Step by Step Solution
- Step 1: Write the proportion equation
89,689.48 : 134,441.90 = 39,793.08 : x - Step 2: Convert to fraction form
89,689.48/134,441.90 = 39,793.08/x - Step 3: Cross multiply
89,689.48x = 134,441.90 × 39,793.08 - Step 4: Simplify right side
89,689.48x = 5,349,857,282.05 - Step 5: Solve for x
x = 5,349,857,282.05/89,689.48 - Step 6: Final answer
x = 59,648.66
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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.