Finding the Fourth Proportional to 79,193.01, 118,789.48 and 31,808.09
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Solution
The fourth proportional to 79,193.01, 118,789.48 and 31,808.09 is: 47,712.12
Step by Step Solution
- Step 1: Write the proportion equation
79,193.01 : 118,789.48 = 31,808.09 : x - Step 2: Convert to fraction form
79,193.01/118,789.48 = 31,808.09/x - Step 3: Cross multiply
79,193.01x = 118,789.48 × 31,808.09 - Step 4: Simplify right side
79,193.01x = 3,778,466,470.89 - Step 5: Solve for x
x = 3,778,466,470.89/79,193.01 - Step 6: Final answer
x = 47,712.12
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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.