Finding the Fourth Proportional to 89,071.18, 122,919.63 and 48,784.22
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Solution
The fourth proportional to 89,071.18, 122,919.63 and 48,784.22 is: 67,322.99
Step by Step Solution
- Step 1: Write the proportion equation
89,071.18 : 122,919.63 = 48,784.22 : x - Step 2: Convert to fraction form
89,071.18/122,919.63 = 48,784.22/x - Step 3: Cross multiply
89,071.18x = 122,919.63 × 48,784.22 - Step 4: Simplify right side
89,071.18x = 5,996,538,272.24 - Step 5: Solve for x
x = 5,996,538,272.24/89,071.18 - Step 6: Final answer
x = 67,322.99
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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.