Finding the Fourth Proportional to 112,750.44, 155,593.92 and 61,762.77
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Solution
The fourth proportional to 112,750.44, 155,593.92 and 61,762.77 is: 85,231.70
Step by Step Solution
- Step 1: Write the proportion equation
112,750.44 : 155,593.92 = 61,762.77 : x - Step 2: Convert to fraction form
112,750.44/155,593.92 = 61,762.77/x - Step 3: Cross multiply
112,750.44x = 155,593.92 × 61,762.77 - Step 4: Simplify right side
112,750.44x = 9,609,911,494.36 - Step 5: Solve for x
x = 9,609,911,494.36/112,750.44 - Step 6: Final answer
x = 85,231.70
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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.