Finding the Fourth Proportional to 96,782.94, 145,102.86 and 40,639.68
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Solution
The fourth proportional to 96,782.94, 145,102.86 and 40,639.68 is: 60,929.48
Step by Step Solution
- Step 1: Write the proportion equation
96,782.94 : 145,102.86 = 40,639.68 : x - Step 2: Convert to fraction form
96,782.94/145,102.86 = 40,639.68/x - Step 3: Cross multiply
96,782.94x = 145,102.86 × 40,639.68 - Step 4: Simplify right side
96,782.94x = 5,896,933,797.48 - Step 5: Solve for x
x = 5,896,933,797.48/96,782.94 - Step 6: Final answer
x = 60,929.48
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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.