Finding the Fourth Proportional to 86,733.21, 119,691.36 and 48,492.75
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Solution
The fourth proportional to 86,733.21, 119,691.36 and 48,492.75 is: 66,919.73
Step by Step Solution
- Step 1: Write the proportion equation
86,733.21 : 119,691.36 = 48,492.75 : x - Step 2: Convert to fraction form
86,733.21/119,691.36 = 48,492.75/x - Step 3: Cross multiply
86,733.21x = 119,691.36 × 48,492.75 - Step 4: Simplify right side
86,733.21x = 5,804,163,197.64 - Step 5: Solve for x
x = 5,804,163,197.64/86,733.21 - Step 6: Final answer
x = 66,919.73
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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.