Finding the Fourth Proportional to 84,652.12, 126,866.77 and 47,229.81
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Solution
The fourth proportional to 84,652.12, 126,866.77 and 47,229.81 is: 70,782.56
Step by Step Solution
- Step 1: Write the proportion equation
84,652.12 : 126,866.77 = 47,229.81 : x - Step 2: Convert to fraction form
84,652.12/126,866.77 = 47,229.81/x - Step 3: Cross multiply
84,652.12x = 126,866.77 × 47,229.81 - Step 4: Simplify right side
84,652.12x = 5,991,893,206.26 - Step 5: Solve for x
x = 5,991,893,206.26/84,652.12 - Step 6: Final answer
x = 70,782.56
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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.