Finding the Fourth Proportional to 79,888.52, 119,225.26 and 71,031.44
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Solution
The fourth proportional to 79,888.52, 119,225.26 and 71,031.44 is: 106,006.99
Step by Step Solution
- Step 1: Write the proportion equation
79,888.52 : 119,225.26 = 71,031.44 : x - Step 2: Convert to fraction form
79,888.52/119,225.26 = 71,031.44/x - Step 3: Cross multiply
79,888.52x = 119,225.26 × 71,031.44 - Step 4: Simplify right side
79,888.52x = 8,468,741,902.17 - Step 5: Solve for x
x = 8,468,741,902.17/79,888.52 - Step 6: Final answer
x = 106,006.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.