Finding the Fourth Proportional to 79,672.20, 119,513.70 and 27,085.65
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Solution
The fourth proportional to 79,672.20, 119,513.70 and 27,085.65 is: 40,630.31
Step by Step Solution
- Step 1: Write the proportion equation
79,672.20 : 119,513.70 = 27,085.65 : x - Step 2: Convert to fraction form
79,672.20/119,513.70 = 27,085.65/x - Step 3: Cross multiply
79,672.20x = 119,513.70 × 27,085.65 - Step 4: Simplify right side
79,672.20x = 3,237,106,248.41 - Step 5: Solve for x
x = 3,237,106,248.41/79,672.20 - Step 6: Final answer
x = 40,630.31
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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.