Finding the Fourth Proportional to 76,965.24, 115,345.80 and 39,523.80
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Solution
The fourth proportional to 76,965.24, 115,345.80 and 39,523.80 is: 59,233.29
Step by Step Solution
- Step 1: Write the proportion equation
76,965.24 : 115,345.80 = 39,523.80 : x - Step 2: Convert to fraction form
76,965.24/115,345.80 = 39,523.80/x - Step 3: Cross multiply
76,965.24x = 115,345.80 × 39,523.80 - Step 4: Simplify right side
76,965.24x = 4,558,904,330.04 - Step 5: Solve for x
x = 4,558,904,330.04/76,965.24 - Step 6: Final answer
x = 59,233.29
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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.