Finding the Fourth Proportional to 94,062.85, 129,798.12 and 55,815.80
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Solution
The fourth proportional to 94,062.85, 129,798.12 and 55,815.80 is: 77,020.70
Step by Step Solution
- Step 1: Write the proportion equation
94,062.85 : 129,798.12 = 55,815.80 : x - Step 2: Convert to fraction form
94,062.85/129,798.12 = 55,815.80/x - Step 3: Cross multiply
94,062.85x = 129,798.12 × 55,815.80 - Step 4: Simplify right side
94,062.85x = 7,244,786,230.79 - Step 5: Solve for x
x = 7,244,786,230.79/94,062.85 - Step 6: Final answer
x = 77,020.70
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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.