Finding the Fourth Proportional to 76,679.22, 115,037.29 and 32,318.66
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Solution
The fourth proportional to 76,679.22, 115,037.29 and 32,318.66 is: 48,485.77
Step by Step Solution
- Step 1: Write the proportion equation
76,679.22 : 115,037.29 = 32,318.66 : x - Step 2: Convert to fraction form
76,679.22/115,037.29 = 32,318.66/x - Step 3: Cross multiply
76,679.22x = 115,037.29 × 32,318.66 - Step 4: Simplify right side
76,679.22x = 3,717,850,901.24 - Step 5: Solve for x
x = 3,717,850,901.24/76,679.22 - Step 6: Final answer
x = 48,485.77
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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.