Finding the Fourth Proportional to 79,769.52, 119,682.12 and 53,221.68
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Solution
The fourth proportional to 79,769.52, 119,682.12 and 53,221.68 is: 79,851.09
Step by Step Solution
- Step 1: Write the proportion equation
79,769.52 : 119,682.12 = 53,221.68 : x - Step 2: Convert to fraction form
79,769.52/119,682.12 = 53,221.68/x - Step 3: Cross multiply
79,769.52x = 119,682.12 × 53,221.68 - Step 4: Simplify right side
79,769.52x = 6,369,683,492.36 - Step 5: Solve for x
x = 6,369,683,492.36/79,769.52 - Step 6: Final answer
x = 79,851.09
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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.