Finding the Fourth Proportional to 79,596.80, 119,368.48 and 40,128.80
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Solution
The fourth proportional to 79,596.80, 119,368.48 and 40,128.80 is: 60,179.73
Step by Step Solution
- Step 1: Write the proportion equation
79,596.80 : 119,368.48 = 40,128.80 : x - Step 2: Convert to fraction form
79,596.80/119,368.48 = 40,128.80/x - Step 3: Cross multiply
79,596.80x = 119,368.48 × 40,128.80 - Step 4: Simplify right side
79,596.80x = 4,790,113,860.22 - Step 5: Solve for x
x = 4,790,113,860.22/79,596.80 - Step 6: Final answer
x = 60,179.73
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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.