Finding the Fourth Proportional to 73,961.19, 110,969.49 and 38,400.31
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Solution
The fourth proportional to 73,961.19, 110,969.49 and 38,400.31 is: 57,614.85
Step by Step Solution
- Step 1: Write the proportion equation
73,961.19 : 110,969.49 = 38,400.31 : x - Step 2: Convert to fraction form
73,961.19/110,969.49 = 38,400.31/x - Step 3: Cross multiply
73,961.19x = 110,969.49 × 38,400.31 - Step 4: Simplify right side
73,961.19x = 4,261,262,816.54 - Step 5: Solve for x
x = 4,261,262,816.54/73,961.19 - Step 6: Final answer
x = 57,614.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.