Finding the Fourth Proportional to 75,338.07, 103,980.87 and 49,844.94
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Solution
The fourth proportional to 75,338.07, 103,980.87 and 49,844.94 is: 68,795.50
Step by Step Solution
- Step 1: Write the proportion equation
75,338.07 : 103,980.87 = 49,844.94 : x - Step 2: Convert to fraction form
75,338.07/103,980.87 = 49,844.94/x - Step 3: Cross multiply
75,338.07x = 103,980.87 × 49,844.94 - Step 4: Simplify right side
75,338.07x = 5,182,920,226.30 - Step 5: Solve for x
x = 5,182,920,226.30/75,338.07 - Step 6: Final answer
x = 68,795.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.