Finding the Fourth Proportional to 79,530.40, 119,295.30 and 20,365.99
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Solution
The fourth proportional to 79,530.40, 119,295.30 and 20,365.99 is: 30,548.91
Step by Step Solution
- Step 1: Write the proportion equation
79,530.40 : 119,295.30 = 20,365.99 : x - Step 2: Convert to fraction form
79,530.40/119,295.30 = 20,365.99/x - Step 3: Cross multiply
79,530.40x = 119,295.30 × 20,365.99 - Step 4: Simplify right side
79,530.40x = 2,429,566,886.85 - Step 5: Solve for x
x = 2,429,566,886.85/79,530.40 - Step 6: Final answer
x = 30,548.91
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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.