Finding the Fourth Proportional to 85,937.22, 128,979.63 and 48,534.03
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Solution
The fourth proportional to 85,937.22, 128,979.63 and 48,534.03 is: 72,842.72
Step by Step Solution
- Step 1: Write the proportion equation
85,937.22 : 128,979.63 = 48,534.03 : x - Step 2: Convert to fraction form
85,937.22/128,979.63 = 48,534.03/x - Step 3: Cross multiply
85,937.22x = 128,979.63 × 48,534.03 - Step 4: Simplify right side
85,937.22x = 6,259,901,231.81 - Step 5: Solve for x
x = 6,259,901,231.81/85,937.22 - Step 6: Final answer
x = 72,842.72
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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.