Finding the Fourth Proportional to 77,379.90, 106,806.99 and 50,526.44
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Solution
The fourth proportional to 77,379.90, 106,806.99 and 50,526.44 is: 69,741.32
Step by Step Solution
- Step 1: Write the proportion equation
77,379.90 : 106,806.99 = 50,526.44 : x - Step 2: Convert to fraction form
77,379.90/106,806.99 = 50,526.44/x - Step 3: Cross multiply
77,379.90x = 106,806.99 × 50,526.44 - Step 4: Simplify right side
77,379.90x = 5,396,576,437.78 - Step 5: Solve for x
x = 5,396,576,437.78/77,379.90 - Step 6: Final answer
x = 69,741.32
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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.