Finding the Fourth Proportional to 71,560.28, 107,328.26 and 18,975.08
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Solution
The fourth proportional to 71,560.28, 107,328.26 and 18,975.08 is: 28,459.40
Step by Step Solution
- Step 1: Write the proportion equation
71,560.28 : 107,328.26 = 18,975.08 : x - Step 2: Convert to fraction form
71,560.28/107,328.26 = 18,975.08/x - Step 3: Cross multiply
71,560.28x = 107,328.26 × 18,975.08 - Step 4: Simplify right side
71,560.28x = 2,036,562,635.52 - Step 5: Solve for x
x = 2,036,562,635.52/71,560.28 - Step 6: Final answer
x = 28,459.40
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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.