Finding the Fourth Proportional to 91,640.52, 137,421.90 and 32,491.08
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Solution
The fourth proportional to 91,640.52, 137,421.90 and 32,491.08 is: 48,722.84
Step by Step Solution
- Step 1: Write the proportion equation
91,640.52 : 137,421.90 = 32,491.08 : x - Step 2: Convert to fraction form
91,640.52/137,421.90 = 32,491.08/x - Step 3: Cross multiply
91,640.52x = 137,421.90 × 32,491.08 - Step 4: Simplify right side
91,640.52x = 4,464,985,946.65 - Step 5: Solve for x
x = 4,464,985,946.65/91,640.52 - Step 6: Final answer
x = 48,722.84
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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.