Finding the Fourth Proportional to 73,760.19, 110,637.42 and 21,169.68
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Solution
The fourth proportional to 73,760.19, 110,637.42 and 21,169.68 is: 31,753.70
Step by Step Solution
- Step 1: Write the proportion equation
73,760.19 : 110,637.42 = 21,169.68 : x - Step 2: Convert to fraction form
73,760.19/110,637.42 = 21,169.68/x - Step 3: Cross multiply
73,760.19x = 110,637.42 × 21,169.68 - Step 4: Simplify right side
73,760.19x = 2,342,158,777.43 - Step 5: Solve for x
x = 2,342,158,777.43/73,760.19 - Step 6: Final answer
x = 31,753.70
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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.