Finding the Fourth Proportional to 69,161.70, 103,742.55 and 62,163.30
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Solution
The fourth proportional to 69,161.70, 103,742.55 and 62,163.30 is: 93,244.95
Step by Step Solution
- Step 1: Write the proportion equation
69,161.70 : 103,742.55 = 62,163.30 : x - Step 2: Convert to fraction form
69,161.70/103,742.55 = 62,163.30/x - Step 3: Cross multiply
69,161.70x = 103,742.55 × 62,163.30 - Step 4: Simplify right side
69,161.70x = 6,448,979,258.42 - Step 5: Solve for x
x = 6,448,979,258.42/69,161.70 - Step 6: Final answer
x = 93,244.95
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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.