Finding the Fourth Proportional to 75,992.02, 104,881.74 and 51,451.70
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Solution
The fourth proportional to 75,992.02, 104,881.74 and 51,451.70 is: 71,011.98
Step by Step Solution
- Step 1: Write the proportion equation
75,992.02 : 104,881.74 = 51,451.70 : x - Step 2: Convert to fraction form
75,992.02/104,881.74 = 51,451.70/x - Step 3: Cross multiply
75,992.02x = 104,881.74 × 51,451.70 - Step 4: Simplify right side
75,992.02x = 5,396,343,297.55 - Step 5: Solve for x
x = 5,396,343,297.55/75,992.02 - Step 6: Final answer
x = 71,011.98
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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.