Finding the Fourth Proportional to 75,252.15, 112,838.13 and 25,315.65
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Solution
The fourth proportional to 75,252.15, 112,838.13 and 25,315.65 is: 37,959.99
Step by Step Solution
- Step 1: Write the proportion equation
75,252.15 : 112,838.13 = 25,315.65 : x - Step 2: Convert to fraction form
75,252.15/112,838.13 = 25,315.65/x - Step 3: Cross multiply
75,252.15x = 112,838.13 × 25,315.65 - Step 4: Simplify right side
75,252.15x = 2,856,570,605.73 - Step 5: Solve for x
x = 2,856,570,605.73/75,252.15 - Step 6: Final answer
x = 37,959.99
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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.