Finding the Fourth Proportional to 66,811.62, 100,077.99 and 40,072.82
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Solution
The fourth proportional to 66,811.62, 100,077.99 and 40,072.82 is: 60,025.59
Step by Step Solution
- Step 1: Write the proportion equation
66,811.62 : 100,077.99 = 40,072.82 : x - Step 2: Convert to fraction form
66,811.62/100,077.99 = 40,072.82/x - Step 3: Cross multiply
66,811.62x = 100,077.99 × 40,072.82 - Step 4: Simplify right side
66,811.62x = 4,010,406,778.84 - Step 5: Solve for x
x = 4,010,406,778.84/66,811.62 - Step 6: Final answer
x = 60,025.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.