Finding the Fourth Proportional to 76,765.98, 115,148.98 and 29,986.05
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Solution
The fourth proportional to 76,765.98, 115,148.98 and 29,986.05 is: 44,979.08
Step by Step Solution
- Step 1: Write the proportion equation
76,765.98 : 115,148.98 = 29,986.05 : x - Step 2: Convert to fraction form
76,765.98/115,148.98 = 29,986.05/x - Step 3: Cross multiply
76,765.98x = 115,148.98 × 29,986.05 - Step 4: Simplify right side
76,765.98x = 3,452,863,428.57 - Step 5: Solve for x
x = 3,452,863,428.57/76,765.98 - Step 6: Final answer
x = 44,979.08
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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.