Finding the Fourth Proportional to 73,043.36, 100,799.63 and 39,509.36
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Solution
The fourth proportional to 73,043.36, 100,799.63 and 39,509.36 is: 54,522.80
Step by Step Solution
- Step 1: Write the proportion equation
73,043.36 : 100,799.63 = 39,509.36 : x - Step 2: Convert to fraction form
73,043.36/100,799.63 = 39,509.36/x - Step 3: Cross multiply
73,043.36x = 100,799.63 × 39,509.36 - Step 4: Simplify right side
73,043.36x = 3,982,528,464.31 - Step 5: Solve for x
x = 3,982,528,464.31/73,043.36 - Step 6: Final answer
x = 54,522.80
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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.