Finding the Fourth Proportional to 70,678.05, 106,021.05 and 22,650.84
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Solution
The fourth proportional to 70,678.05, 106,021.05 and 22,650.84 is: 33,977.53
Step by Step Solution
- Step 1: Write the proportion equation
70,678.05 : 106,021.05 = 22,650.84 : x - Step 2: Convert to fraction form
70,678.05/106,021.05 = 22,650.84/x - Step 3: Cross multiply
70,678.05x = 106,021.05 × 22,650.84 - Step 4: Simplify right side
70,678.05x = 2,401,465,882.65 - Step 5: Solve for x
x = 2,401,465,882.65/70,678.05 - Step 6: Final answer
x = 33,977.53
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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.