Finding the Fourth Proportional to 79,368.75, 119,051.80 and 31,982.68
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Solution
The fourth proportional to 79,368.75, 119,051.80 and 31,982.68 is: 47,973.49
Step by Step Solution
- Step 1: Write the proportion equation
79,368.75 : 119,051.80 = 31,982.68 : x - Step 2: Convert to fraction form
79,368.75/119,051.80 = 31,982.68/x - Step 3: Cross multiply
79,368.75x = 119,051.80 × 31,982.68 - Step 4: Simplify right side
79,368.75x = 3,807,595,622.82 - Step 5: Solve for x
x = 3,807,595,622.82/79,368.75 - Step 6: Final answer
x = 47,973.49
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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.