Finding the Fourth Proportional to 79,220.31, 118,830.67 and 20,055.99
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Solution
The fourth proportional to 79,220.31, 118,830.67 and 20,055.99 is: 30,084.03
Step by Step Solution
- Step 1: Write the proportion equation
79,220.31 : 118,830.67 = 20,055.99 : x - Step 2: Convert to fraction form
79,220.31/118,830.67 = 20,055.99/x - Step 3: Cross multiply
79,220.31x = 118,830.67 × 20,055.99 - Step 4: Simplify right side
79,220.31x = 2,383,266,512.67 - Step 5: Solve for x
x = 2,383,266,512.67/79,220.31 - Step 6: Final answer
x = 30,084.03
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1.5x scale
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.