Finding the Fourth Proportional to 76,203.18, 114,293.84 and 31,821.66
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Solution
The fourth proportional to 76,203.18, 114,293.84 and 31,821.66 is: 47,727.92
Step by Step Solution
- Step 1: Write the proportion equation
76,203.18 : 114,293.84 = 31,821.66 : x - Step 2: Convert to fraction form
76,203.18/114,293.84 = 31,821.66/x - Step 3: Cross multiply
76,203.18x = 114,293.84 × 31,821.66 - Step 4: Simplify right side
76,203.18x = 3,637,019,557.47 - Step 5: Solve for x
x = 3,637,019,557.47/76,203.18 - Step 6: Final answer
x = 47,727.92
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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.