Finding the Fourth Proportional to 77,260.76, 115,943.07 and 27,340.65
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Solution
The fourth proportional to 77,260.76, 115,943.07 and 27,340.65 is: 41,029.35
Step by Step Solution
- Step 1: Write the proportion equation
77,260.76 : 115,943.07 = 27,340.65 : x - Step 2: Convert to fraction form
77,260.76/115,943.07 = 27,340.65/x - Step 3: Cross multiply
77,260.76x = 115,943.07 × 27,340.65 - Step 4: Simplify right side
77,260.76x = 3,169,958,896.80 - Step 5: Solve for x
x = 3,169,958,896.80/77,260.76 - Step 6: Final answer
x = 41,029.35
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1.5x scale
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.