Finding the Fourth Proportional to 84,233.20, 126,349.80 and 21,903.70
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Solution
The fourth proportional to 84,233.20, 126,349.80 and 21,903.70 is: 32,855.55
Step by Step Solution
- Step 1: Write the proportion equation
84,233.20 : 126,349.80 = 21,903.70 : x - Step 2: Convert to fraction form
84,233.20/126,349.80 = 21,903.70/x - Step 3: Cross multiply
84,233.20x = 126,349.80 × 21,903.70 - Step 4: Simplify right side
84,233.20x = 2,767,528,114.26 - Step 5: Solve for x
x = 2,767,528,114.26/84,233.20 - Step 6: Final answer
x = 32,855.55
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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.