Finding the Fourth Proportional to 79,152, 109,229.76 and 43,824
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Solution
The fourth proportional to 79,152, 109,229.76 and 43,824 is: 60,477.12
Step by Step Solution
- Step 1: Write the proportion equation
79,152 : 109,229.76 = 43,824 : x - Step 2: Convert to fraction form
79,152/109,229.76 = 43,824/x - Step 3: Cross multiply
79,152x = 109,229.76 × 43,824 - Step 4: Simplify right side
79,152x = 4,786,885,002.24 - Step 5: Solve for x
x = 4,786,885,002.24/79,152 - Step 6: Final answer
x = 60,477.12
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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.