Finding the Fourth Proportional to 77,072.24, 115,628.52 and 32,700.80
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Solution
The fourth proportional to 77,072.24, 115,628.52 and 32,700.80 is: 49,059.75
Step by Step Solution
- Step 1: Write the proportion equation
77,072.24 : 115,628.52 = 32,700.80 : x - Step 2: Convert to fraction form
77,072.24/115,628.52 = 32,700.80/x - Step 3: Cross multiply
77,072.24x = 115,628.52 × 32,700.80 - Step 4: Simplify right side
77,072.24x = 3,781,145,106.82 - Step 5: Solve for x
x = 3,781,145,106.82/77,072.24 - Step 6: Final answer
x = 49,059.75
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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.