Finding the Fourth Proportional to 84,534.30, 126,709.92 and 54,973.35
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Solution
The fourth proportional to 84,534.30, 126,709.92 and 54,973.35 is: 82,400.50
Step by Step Solution
- Step 1: Write the proportion equation
84,534.30 : 126,709.92 = 54,973.35 : x - Step 2: Convert to fraction form
84,534.30/126,709.92 = 54,973.35/x - Step 3: Cross multiply
84,534.30x = 126,709.92 × 54,973.35 - Step 4: Simplify right side
84,534.30x = 6,965,668,780.63 - Step 5: Solve for x
x = 6,965,668,780.63/84,534.30 - Step 6: Final answer
x = 82,400.50
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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.