Finding the Fourth Proportional to 81,988.05, 122,704.08 and 50,417.94
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Solution
The fourth proportional to 81,988.05, 122,704.08 and 50,417.94 is: 75,455.96
Step by Step Solution
- Step 1: Write the proportion equation
81,988.05 : 122,704.08 = 50,417.94 : x - Step 2: Convert to fraction form
81,988.05/122,704.08 = 50,417.94/x - Step 3: Cross multiply
81,988.05x = 122,704.08 × 50,417.94 - Step 4: Simplify right side
81,988.05x = 6,186,486,943.20 - Step 5: Solve for x
x = 6,186,486,943.20/81,988.05 - Step 6: Final answer
x = 75,455.96
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1.5x scale
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.