Finding the Fourth Proportional to 73,593.70, 110,357.34 and 20,990.68
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Solution
The fourth proportional to 73,593.70, 110,357.34 and 20,990.68 is: 31,476.55
Step by Step Solution
- Step 1: Write the proportion equation
73,593.70 : 110,357.34 = 20,990.68 : x - Step 2: Convert to fraction form
73,593.70/110,357.34 = 20,990.68/x - Step 3: Cross multiply
73,593.70x = 110,357.34 × 20,990.68 - Step 4: Simplify right side
73,593.70x = 2,316,475,609.59 - Step 5: Solve for x
x = 2,316,475,609.59/73,593.70 - Step 6: Final answer
x = 31,476.55
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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.