Finding the Fourth Proportional to 81,645.64, 122,506.13 and 37,285.99
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Solution
The fourth proportional to 81,645.64, 122,506.13 and 37,285.99 is: 55,946.19
Step by Step Solution
- Step 1: Write the proportion equation
81,645.64 : 122,506.13 = 37,285.99 : x - Step 2: Convert to fraction form
81,645.64/122,506.13 = 37,285.99/x - Step 3: Cross multiply
81,645.64x = 122,506.13 × 37,285.99 - Step 4: Simplify right side
81,645.64x = 4,567,762,338.12 - Step 5: Solve for x
x = 4,567,762,338.12/81,645.64 - Step 6: Final answer
x = 55,946.19
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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.