Finding the Fourth Proportional to 79,790.80, 119,645.41 and 26,463.54
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Solution
The fourth proportional to 79,790.80, 119,645.41 and 26,463.54 is: 39,681.78
Step by Step Solution
- Step 1: Write the proportion equation
79,790.80 : 119,645.41 = 26,463.54 : x - Step 2: Convert to fraction form
79,790.80/119,645.41 = 26,463.54/x - Step 3: Cross multiply
79,790.80x = 119,645.41 × 26,463.54 - Step 4: Simplify right side
79,790.80x = 3,166,240,590.40 - Step 5: Solve for x
x = 3,166,240,590.40/79,790.80 - Step 6: Final answer
x = 39,681.78
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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.