Finding the Fourth Proportional to 71,908.93, 107,769.61 and 38,589.99
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Solution
The fourth proportional to 71,908.93, 107,769.61 and 38,589.99 is: 57,834.66
Step by Step Solution
- Step 1: Write the proportion equation
71,908.93 : 107,769.61 = 38,589.99 : x - Step 2: Convert to fraction form
71,908.93/107,769.61 = 38,589.99/x - Step 3: Cross multiply
71,908.93x = 107,769.61 × 38,589.99 - Step 4: Simplify right side
71,908.93x = 4,158,828,172.20 - Step 5: Solve for x
x = 4,158,828,172.20/71,908.93 - Step 6: Final answer
x = 57,834.66
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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.