Finding the Fourth Proportional to 79,362.97, 119,043.14 and 31,976.90
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Solution
The fourth proportional to 79,362.97, 119,043.14 and 31,976.90 is: 47,964.82
Step by Step Solution
- Step 1: Write the proportion equation
79,362.97 : 119,043.14 = 31,976.90 : x - Step 2: Convert to fraction form
79,362.97/119,043.14 = 31,976.90/x - Step 3: Cross multiply
79,362.97x = 119,043.14 × 31,976.90 - Step 4: Simplify right side
79,362.97x = 3,806,630,841.10 - Step 5: Solve for x
x = 3,806,630,841.10/79,362.97 - Step 6: Final answer
x = 47,964.82
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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.