Finding the Fourth Proportional to 73,771.65, 110,511.68 and 40,432.05
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Solution
The fourth proportional to 73,771.65, 110,511.68 and 40,432.05 is: 60,568.17
Step by Step Solution
- Step 1: Write the proportion equation
73,771.65 : 110,511.68 = 40,432.05 : x - Step 2: Convert to fraction form
73,771.65/110,511.68 = 40,432.05/x - Step 3: Cross multiply
73,771.65x = 110,511.68 × 40,432.05 - Step 4: Simplify right side
73,771.65x = 4,468,213,569.18 - Step 5: Solve for x
x = 4,468,213,569.18/73,771.65 - Step 6: Final answer
x = 60,568.17
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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.