Finding the Fourth Proportional to 87,361.94, 130,924.67 and 39,918.62
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Solution
The fourth proportional to 87,361.94, 130,924.67 and 39,918.62 is: 59,823.90
Step by Step Solution
- Step 1: Write the proportion equation
87,361.94 : 130,924.67 = 39,918.62 : x - Step 2: Convert to fraction form
87,361.94/130,924.67 = 39,918.62/x - Step 3: Cross multiply
87,361.94x = 130,924.67 × 39,918.62 - Step 4: Simplify right side
87,361.94x = 5,226,331,296.14 - Step 5: Solve for x
x = 5,226,331,296.14/87,361.94 - Step 6: Final answer
x = 59,823.90
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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.