Finding the Fourth Proportional to 81,602.64, 122,441.68 and 37,242.99
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Solution
The fourth proportional to 81,602.64, 122,441.68 and 37,242.99 is: 55,881.70
Step by Step Solution
- Step 1: Write the proportion equation
81,602.64 : 122,441.68 = 37,242.99 : x - Step 2: Convert to fraction form
81,602.64/122,441.68 = 37,242.99/x - Step 3: Cross multiply
81,602.64x = 122,441.68 × 37,242.99 - Step 4: Simplify right side
81,602.64x = 4,560,094,100.89 - Step 5: Solve for x
x = 4,560,094,100.89/81,602.64 - Step 6: Final answer
x = 55,881.70
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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.