Finding the Fourth Proportional to 79,530.86, 109,752.57 and 43,723.19
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Solution
The fourth proportional to 79,530.86, 109,752.57 and 43,723.19 is: 60,337.99
Step by Step Solution
- Step 1: Write the proportion equation
79,530.86 : 109,752.57 = 43,723.19 : x - Step 2: Convert to fraction form
79,530.86/109,752.57 = 43,723.19/x - Step 3: Cross multiply
79,530.86x = 109,752.57 × 43,723.19 - Step 4: Simplify right side
79,530.86x = 4,798,732,745.48 - Step 5: Solve for x
x = 4,798,732,745.48/79,530.86 - Step 6: Final answer
x = 60,337.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.