Finding the Fourth Proportional to 81,537.08, 122,344.27 and 39,393.54
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Solution
The fourth proportional to 81,537.08, 122,344.27 and 39,393.54 is: 59,108.98
Step by Step Solution
- Step 1: Write the proportion equation
81,537.08 : 122,344.27 = 39,393.54 : x - Step 2: Convert to fraction form
81,537.08/122,344.27 = 39,393.54/x - Step 3: Cross multiply
81,537.08x = 122,344.27 × 39,393.54 - Step 4: Simplify right side
81,537.08x = 4,819,574,017.12 - Step 5: Solve for x
x = 4,819,574,017.12/81,537.08 - Step 6: Final answer
x = 59,108.98
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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.