Finding the Fourth Proportional to 79,369.74, 109,531.53 and 43,563.08
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Solution
The fourth proportional to 79,369.74, 109,531.53 and 43,563.08 is: 60,117.75
Step by Step Solution
- Step 1: Write the proportion equation
79,369.74 : 109,531.53 = 43,563.08 : x - Step 2: Convert to fraction form
79,369.74/109,531.53 = 43,563.08/x - Step 3: Cross multiply
79,369.74x = 109,531.53 × 43,563.08 - Step 4: Simplify right side
79,369.74x = 4,771,530,256.25 - Step 5: Solve for x
x = 4,771,530,256.25/79,369.74 - Step 6: Final answer
x = 60,117.75
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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.