Finding the Fourth Proportional to 128,423.44, 192,605.93 and 48,469.88
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Solution
The fourth proportional to 128,423.44, 192,605.93 and 48,469.88 is: 72,693.79
Step by Step Solution
- Step 1: Write the proportion equation
128,423.44 : 192,605.93 = 48,469.88 : x - Step 2: Convert to fraction form
128,423.44/192,605.93 = 48,469.88/x - Step 3: Cross multiply
128,423.44x = 192,605.93 × 48,469.88 - Step 4: Simplify right side
128,423.44x = 9,335,586,314.39 - Step 5: Solve for x
x = 9,335,586,314.39/128,423.44 - Step 6: Final answer
x = 72,693.79
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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.