Finding the Fourth Proportional to 84,669.60, 126,985.68 and 32,077.92
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Solution
The fourth proportional to 84,669.60, 126,985.68 and 32,077.92 is: 48,109.79
Step by Step Solution
- Step 1: Write the proportion equation
84,669.60 : 126,985.68 = 32,077.92 : x - Step 2: Convert to fraction form
84,669.60/126,985.68 = 32,077.92/x - Step 3: Cross multiply
84,669.60x = 126,985.68 × 32,077.92 - Step 4: Simplify right side
84,669.60x = 4,073,436,484.19 - Step 5: Solve for x
x = 4,073,436,484.19/84,669.60 - Step 6: Final answer
x = 48,109.79
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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.