Finding the Fourth Proportional to 79,201.80, 118,763.82 and 29,279.88
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Solution
The fourth proportional to 79,201.80, 118,763.82 and 29,279.88 is: 43,905.45
Step by Step Solution
- Step 1: Write the proportion equation
79,201.80 : 118,763.82 = 29,279.88 : x - Step 2: Convert to fraction form
79,201.80/118,763.82 = 29,279.88/x - Step 3: Cross multiply
79,201.80x = 118,763.82 × 29,279.88 - Step 4: Simplify right side
79,201.80x = 3,477,390,397.94 - Step 5: Solve for x
x = 3,477,390,397.94/79,201.80 - Step 6: Final answer
x = 43,905.45
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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.