Finding the Fourth Proportional to 83,464.63, 125,201.51 and 21,135.67
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Solution
The fourth proportional to 83,464.63, 125,201.51 and 21,135.67 is: 31,704.66
Step by Step Solution
- Step 1: Write the proportion equation
83,464.63 : 125,201.51 = 21,135.67 : x - Step 2: Convert to fraction form
83,464.63/125,201.51 = 21,135.67/x - Step 3: Cross multiply
83,464.63x = 125,201.51 × 21,135.67 - Step 4: Simplify right side
83,464.63x = 2,646,217,798.86 - Step 5: Solve for x
x = 2,646,217,798.86/83,464.63 - Step 6: Final answer
x = 31,704.66
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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.