Finding the Fourth Proportional to 84,006.08, 126,009.12 and 57,630.88
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Solution
The fourth proportional to 84,006.08, 126,009.12 and 57,630.88 is: 86,446.32
Step by Step Solution
- Step 1: Write the proportion equation
84,006.08 : 126,009.12 = 57,630.88 : x - Step 2: Convert to fraction form
84,006.08/126,009.12 = 57,630.88/x - Step 3: Cross multiply
84,006.08x = 126,009.12 × 57,630.88 - Step 4: Simplify right side
84,006.08x = 7,262,016,473.63 - Step 5: Solve for x
x = 7,262,016,473.63/84,006.08 - Step 6: Final answer
x = 86,446.32
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1.5x scale
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.