Finding the Fourth Proportional to 79,202.19, 109,299.11 and 43,394.49
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Solution
The fourth proportional to 79,202.19, 109,299.11 and 43,394.49 is: 59,884.44
Step by Step Solution
- Step 1: Write the proportion equation
79,202.19 : 109,299.11 = 43,394.49 : x - Step 2: Convert to fraction form
79,202.19/109,299.11 = 43,394.49/x - Step 3: Cross multiply
79,202.19x = 109,299.11 × 43,394.49 - Step 4: Simplify right side
79,202.19x = 4,742,979,135.90 - Step 5: Solve for x
x = 4,742,979,135.90/79,202.19 - Step 6: Final answer
x = 59,884.44
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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.