Finding the Fourth Proportional to 84,106.55, 126,047.75 and 39,745.08
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Solution
The fourth proportional to 84,106.55, 126,047.75 and 39,745.08 is: 59,564.65
Step by Step Solution
- Step 1: Write the proportion equation
84,106.55 : 126,047.75 = 39,745.08 : x - Step 2: Convert to fraction form
84,106.55/126,047.75 = 39,745.08/x - Step 3: Cross multiply
84,106.55x = 126,047.75 × 39,745.08 - Step 4: Simplify right side
84,106.55x = 5,009,777,708.84 - Step 5: Solve for x
x = 5,009,777,708.84/84,106.55 - Step 6: Final answer
x = 59,564.65
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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.