Finding the Fourth Proportional to 79,009.67, 118,489.80 and 26,406.85
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Solution
The fourth proportional to 79,009.67, 118,489.80 and 26,406.85 is: 39,602.02
Step by Step Solution
- Step 1: Write the proportion equation
79,009.67 : 118,489.80 = 26,406.85 : x - Step 2: Convert to fraction form
79,009.67/118,489.80 = 26,406.85/x - Step 3: Cross multiply
79,009.67x = 118,489.80 × 26,406.85 - Step 4: Simplify right side
79,009.67x = 3,128,942,375.13 - Step 5: Solve for x
x = 3,128,942,375.13/79,009.67 - Step 6: Final answer
x = 39,602.02
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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.