Finding the Fourth Proportional to 79,176.08, 118,768.20 and 20,012.26
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Solution
The fourth proportional to 79,176.08, 118,768.20 and 20,012.26 is: 30,019.42
Step by Step Solution
- Step 1: Write the proportion equation
79,176.08 : 118,768.20 = 20,012.26 : x - Step 2: Convert to fraction form
79,176.08/118,768.20 = 20,012.26/x - Step 3: Cross multiply
79,176.08x = 118,768.20 × 20,012.26 - Step 4: Simplify right side
79,176.08x = 2,376,820,098.13 - Step 5: Solve for x
x = 2,376,820,098.13/79,176.08 - Step 6: Final answer
x = 30,019.42
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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.