Finding the Fourth Proportional to 87,412.36, 120,610.98 and 51,106.81
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Solution
The fourth proportional to 87,412.36, 120,610.98 and 51,106.81 is: 70,516.83
Step by Step Solution
- Step 1: Write the proportion equation
87,412.36 : 120,610.98 = 51,106.81 : x - Step 2: Convert to fraction form
87,412.36/120,610.98 = 51,106.81/x - Step 3: Cross multiply
87,412.36x = 120,610.98 × 51,106.81 - Step 4: Simplify right side
87,412.36x = 6,164,042,438.77 - Step 5: Solve for x
x = 6,164,042,438.77/87,412.36 - Step 6: Final answer
x = 70,516.83
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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.