Finding the Fourth Proportional to 101,991.24, 152,659.44 and 54,487.62
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Solution
The fourth proportional to 101,991.24, 152,659.44 and 54,487.62 is: 81,556.51
Step by Step Solution
- Step 1: Write the proportion equation
101,991.24 : 152,659.44 = 54,487.62 : x - Step 2: Convert to fraction form
101,991.24/152,659.44 = 54,487.62/x - Step 3: Cross multiply
101,991.24x = 152,659.44 × 54,487.62 - Step 4: Simplify right side
101,991.24x = 8,318,049,556.13 - Step 5: Solve for x
x = 8,318,049,556.13/101,991.24 - Step 6: Final answer
x = 81,556.51
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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.