Finding the Fourth Proportional to 112,042.75, 154,622.30 and 61,744.99
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Solution
The fourth proportional to 112,042.75, 154,622.30 and 61,744.99 is: 85,209.90
Step by Step Solution
- Step 1: Write the proportion equation
112,042.75 : 154,622.30 = 61,744.99 : x - Step 2: Convert to fraction form
112,042.75/154,622.30 = 61,744.99/x - Step 3: Cross multiply
112,042.75x = 154,622.30 × 61,744.99 - Step 4: Simplify right side
112,042.75x = 9,547,152,058.55 - Step 5: Solve for x
x = 9,547,152,058.55/112,042.75 - Step 6: Final answer
x = 85,209.90
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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.