Finding the Fourth Proportional to 69,395.05, 104,077.01 and 31,919.12
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Solution
The fourth proportional to 69,395.05, 104,077.01 and 31,919.12 is: 47,871.52
Step by Step Solution
- Step 1: Write the proportion equation
69,395.05 : 104,077.01 = 31,919.12 : x - Step 2: Convert to fraction form
69,395.05/104,077.01 = 31,919.12/x - Step 3: Cross multiply
69,395.05x = 104,077.01 × 31,919.12 - Step 4: Simplify right side
69,395.05x = 3,322,046,571.43 - Step 5: Solve for x
x = 3,322,046,571.43/69,395.05 - Step 6: Final answer
x = 47,871.52
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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.