Finding the Fourth Proportional to 75,907.18, 104,782.80 and 49,051.90
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Solution
The fourth proportional to 75,907.18, 104,782.80 and 49,051.90 is: 67,711.59
Step by Step Solution
- Step 1: Write the proportion equation
75,907.18 : 104,782.80 = 49,051.90 : x - Step 2: Convert to fraction form
75,907.18/104,782.80 = 49,051.90/x - Step 3: Cross multiply
75,907.18x = 104,782.80 × 49,051.90 - Step 4: Simplify right side
75,907.18x = 5,139,795,742.24 - Step 5: Solve for x
x = 5,139,795,742.24/75,907.18 - Step 6: Final answer
x = 67,711.59
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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.