Finding the Fourth Proportional to 71,611.52, 107,482.92 and 38,369.12
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Solution
The fourth proportional to 71,611.52, 107,482.92 and 38,369.12 is: 57,588.85
Step by Step Solution
- Step 1: Write the proportion equation
71,611.52 : 107,482.92 = 38,369.12 : x - Step 2: Convert to fraction form
71,611.52/107,482.92 = 38,369.12/x - Step 3: Cross multiply
71,611.52x = 107,482.92 × 38,369.12 - Step 4: Simplify right side
71,611.52x = 4,124,025,055.43 - Step 5: Solve for x
x = 4,124,025,055.43/71,611.52 - Step 6: Final answer
x = 57,588.85
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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.