Finding the Fourth Proportional to 128,426.44, 192,610.42 and 48,472.88
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Solution
The fourth proportional to 128,426.44, 192,610.42 and 48,472.88 is: 72,698.28
Step by Step Solution
- Step 1: Write the proportion equation
128,426.44 : 192,610.42 = 48,472.88 : x - Step 2: Convert to fraction form
128,426.44/192,610.42 = 48,472.88/x - Step 3: Cross multiply
128,426.44x = 192,610.42 × 48,472.88 - Step 4: Simplify right side
128,426.44x = 9,336,381,775.41 - Step 5: Solve for x
x = 9,336,381,775.41/128,426.44 - Step 6: Final answer
x = 72,698.28
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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.