Finding the Fourth Proportional to 74,181.40, 102,372.18 and 42,353.26
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Solution
The fourth proportional to 74,181.40, 102,372.18 and 42,353.26 is: 58,448.55
Step by Step Solution
- Step 1: Write the proportion equation
74,181.40 : 102,372.18 = 42,353.26 : x - Step 2: Convert to fraction form
74,181.40/102,372.18 = 42,353.26/x - Step 3: Cross multiply
74,181.40x = 102,372.18 × 42,353.26 - Step 4: Simplify right side
74,181.40x = 4,335,795,556.31 - Step 5: Solve for x
x = 4,335,795,556.31/74,181.40 - Step 6: Final answer
x = 58,448.55
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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.