Finding the Fourth Proportional to 79,234.95, 118,852.97 and 20,070.79
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Solution
The fourth proportional to 79,234.95, 118,852.97 and 20,070.79 is: 30,106.32
Step by Step Solution
- Step 1: Write the proportion equation
79,234.95 : 118,852.97 = 20,070.79 : x - Step 2: Convert to fraction form
79,234.95/118,852.97 = 20,070.79/x - Step 3: Cross multiply
79,234.95x = 118,852.97 × 20,070.79 - Step 4: Simplify right side
79,234.95x = 2,385,473,001.75 - Step 5: Solve for x
x = 2,385,473,001.75/79,234.95 - Step 6: Final answer
x = 30,106.32
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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.