Finding the Fourth Proportional to 83,424.60, 115,033.71 and 53,161.99
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Solution
The fourth proportional to 83,424.60, 115,033.71 and 53,161.99 is: 73,304.77
Step by Step Solution
- Step 1: Write the proportion equation
83,424.60 : 115,033.71 = 53,161.99 : x - Step 2: Convert to fraction form
83,424.60/115,033.71 = 53,161.99/x - Step 3: Cross multiply
83,424.60x = 115,033.71 × 53,161.99 - Step 4: Simplify right side
83,424.60x = 6,115,420,940.68 - Step 5: Solve for x
x = 6,115,420,940.68/83,424.60 - Step 6: Final answer
x = 73,304.77
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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.