Finding the Fourth Proportional to 87,108.98, 120,209.84 and 48,346.38
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Solution
The fourth proportional to 87,108.98, 120,209.84 and 48,346.38 is: 66,717.70
Step by Step Solution
- Step 1: Write the proportion equation
87,108.98 : 120,209.84 = 48,346.38 : x - Step 2: Convert to fraction form
87,108.98/120,209.84 = 48,346.38/x - Step 3: Cross multiply
87,108.98x = 120,209.84 × 48,346.38 - Step 4: Simplify right side
87,108.98x = 5,811,710,362.65 - Step 5: Solve for x
x = 5,811,710,362.65/87,108.98 - Step 6: Final answer
x = 66,717.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.