Finding the Fourth Proportional to 74,512.08, 102,824.62 and 40,978.08
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Solution
The fourth proportional to 74,512.08, 102,824.62 and 40,978.08 is: 56,548.62
Step by Step Solution
- Step 1: Write the proportion equation
74,512.08 : 102,824.62 = 40,978.08 : x - Step 2: Convert to fraction form
74,512.08/102,824.62 = 40,978.08/x - Step 3: Cross multiply
74,512.08x = 102,824.62 × 40,978.08 - Step 4: Simplify right side
74,512.08x = 4,213,555,504.33 - Step 5: Solve for x
x = 4,213,555,504.33/74,512.08 - Step 6: Final answer
x = 56,548.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.