Finding the Fourth Proportional to 84,108.55, 126,050.74 and 39,747.08
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Solution
The fourth proportional to 84,108.55, 126,050.74 and 39,747.08 is: 59,567.65
Step by Step Solution
- Step 1: Write the proportion equation
84,108.55 : 126,050.74 = 39,747.08 : x - Step 2: Convert to fraction form
84,108.55/126,050.74 = 39,747.08/x - Step 3: Cross multiply
84,108.55x = 126,050.74 × 39,747.08 - Step 4: Simplify right side
84,108.55x = 5,010,148,846.84 - Step 5: Solve for x
x = 5,010,148,846.84/84,108.55 - Step 6: Final answer
x = 59,567.65
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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.