Finding the Fourth Proportional to 80,138.95, 120,164.01 and 32,787.26
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Solution
The fourth proportional to 80,138.95, 120,164.01 and 32,787.26 is: 49,162.72
Step by Step Solution
- Step 1: Write the proportion equation
80,138.95 : 120,164.01 = 32,787.26 : x - Step 2: Convert to fraction form
80,138.95/120,164.01 = 32,787.26/x - Step 3: Cross multiply
80,138.95x = 120,164.01 × 32,787.26 - Step 4: Simplify right side
80,138.95x = 3,939,849,041.28 - Step 5: Solve for x
x = 3,939,849,041.28/80,138.95 - Step 6: Final answer
x = 49,162.72
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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.