Finding the Fourth Proportional to 84,216.72, 126,237.24 and 34,276.80
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Solution
The fourth proportional to 84,216.72, 126,237.24 and 34,276.80 is: 51,379.45
Step by Step Solution
- Step 1: Write the proportion equation
84,216.72 : 126,237.24 = 34,276.80 : x - Step 2: Convert to fraction form
84,216.72/126,237.24 = 34,276.80/x - Step 3: Cross multiply
84,216.72x = 126,237.24 × 34,276.80 - Step 4: Simplify right side
84,216.72x = 4,327,008,628.03 - Step 5: Solve for x
x = 4,327,008,628.03/84,216.72 - Step 6: Final answer
x = 51,379.45
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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.