Finding the Fourth Proportional to 79,771.08, 119,657.01 and 20,602.65
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Solution
The fourth proportional to 79,771.08, 119,657.01 and 20,602.65 is: 30,904.08
Step by Step Solution
- Step 1: Write the proportion equation
79,771.08 : 119,657.01 = 20,602.65 : x - Step 2: Convert to fraction form
79,771.08/119,657.01 = 20,602.65/x - Step 3: Cross multiply
79,771.08x = 119,657.01 × 20,602.65 - Step 4: Simplify right side
79,771.08x = 2,465,251,497.08 - Step 5: Solve for x
x = 2,465,251,497.08/79,771.08 - Step 6: Final answer
x = 30,904.08
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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.