Finding the Fourth Proportional to 81,534.47, 112,520.43 and 47,537.19
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Solution
The fourth proportional to 81,534.47, 112,520.43 and 47,537.19 is: 65,602.99
Step by Step Solution
- Step 1: Write the proportion equation
81,534.47 : 112,520.43 = 47,537.19 : x - Step 2: Convert to fraction form
81,534.47/112,520.43 = 47,537.19/x - Step 3: Cross multiply
81,534.47x = 112,520.43 × 47,537.19 - Step 4: Simplify right side
81,534.47x = 5,348,905,059.79 - Step 5: Solve for x
x = 5,348,905,059.79/81,534.47 - Step 6: Final answer
x = 65,602.99
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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.