Finding the Fourth Proportional to 91,102.14, 125,800.11 and 57,169.49
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Solution
The fourth proportional to 91,102.14, 125,800.11 and 57,169.49 is: 78,943.56
Step by Step Solution
- Step 1: Write the proportion equation
91,102.14 : 125,800.11 = 57,169.49 : x - Step 2: Convert to fraction form
91,102.14/125,800.11 = 57,169.49/x - Step 3: Cross multiply
91,102.14x = 125,800.11 × 57,169.49 - Step 4: Simplify right side
91,102.14x = 7,191,927,501.64 - Step 5: Solve for x
x = 7,191,927,501.64/91,102.14 - Step 6: Final answer
x = 78,943.56
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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.