Finding the Fourth Proportional to 73,055.44, 100,816.68 and 39,521.44
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Solution
The fourth proportional to 73,055.44, 100,816.68 and 39,521.44 is: 54,539.68
Step by Step Solution
- Step 1: Write the proportion equation
73,055.44 : 100,816.68 = 39,521.44 : x - Step 2: Convert to fraction form
73,055.44/100,816.68 = 39,521.44/x - Step 3: Cross multiply
73,055.44x = 100,816.68 × 39,521.44 - Step 4: Simplify right side
73,055.44x = 3,984,420,369.62 - Step 5: Solve for x
x = 3,984,420,369.62/73,055.44 - Step 6: Final answer
x = 54,539.68
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1.5x scale
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.