Finding the Fourth Proportional to 90,207.65, 135,163.71 and 48,042.96
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Solution
The fourth proportional to 90,207.65, 135,163.71 and 48,042.96 is: 71,985.75
Step by Step Solution
- Step 1: Write the proportion equation
90,207.65 : 135,163.71 = 48,042.96 : x - Step 2: Convert to fraction form
90,207.65/135,163.71 = 48,042.96/x - Step 3: Cross multiply
90,207.65x = 135,163.71 × 48,042.96 - Step 4: Simplify right side
90,207.65x = 6,493,664,712.98 - Step 5: Solve for x
x = 6,493,664,712.98/90,207.65 - Step 6: Final answer
x = 71,985.75
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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.