Finding the Fourth Proportional to 81,570.08, 122,196.96 and 47,754.08
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Solution
The fourth proportional to 81,570.08, 122,196.96 and 47,754.08 is: 71,538.53
Step by Step Solution
- Step 1: Write the proportion equation
81,570.08 : 122,196.96 = 47,754.08 : x - Step 2: Convert to fraction form
81,570.08/122,196.96 = 47,754.08/x - Step 3: Cross multiply
81,570.08x = 122,196.96 × 47,754.08 - Step 4: Simplify right side
81,570.08x = 5,835,403,403.60 - Step 5: Solve for x
x = 5,835,403,403.60/81,570.08 - Step 6: Final answer
x = 71,538.53
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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.