Finding the Fourth Proportional to 78,762.24, 118,143.81 and 19,597.92
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Solution
The fourth proportional to 78,762.24, 118,143.81 and 19,597.92 is: 29,396.99
Step by Step Solution
- Step 1: Write the proportion equation
78,762.24 : 118,143.81 = 19,597.92 : x - Step 2: Convert to fraction form
78,762.24/118,143.81 = 19,597.92/x - Step 3: Cross multiply
78,762.24x = 118,143.81 × 19,597.92 - Step 4: Simplify right side
78,762.24x = 2,315,372,936.88 - Step 5: Solve for x
x = 2,315,372,936.88/78,762.24 - Step 6: Final answer
x = 29,396.99
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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.