Finding the Fourth Proportional to 74,194.56, 102,387.60 and 40,202.88
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Solution
The fourth proportional to 74,194.56, 102,387.60 and 40,202.88 is: 55,479.49
Step by Step Solution
- Step 1: Write the proportion equation
74,194.56 : 102,387.60 = 40,202.88 : x - Step 2: Convert to fraction form
74,194.56/102,387.60 = 40,202.88/x - Step 3: Cross multiply
74,194.56x = 102,387.60 × 40,202.88 - Step 4: Simplify right side
74,194.56x = 4,116,276,396.29 - Step 5: Solve for x
x = 4,116,276,396.29/74,194.56 - Step 6: Final answer
x = 55,479.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.