Finding the Fourth Proportional to 115,427.84, 159,289.79 and 64,437.62
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Solution
The fourth proportional to 115,427.84, 159,289.79 and 64,437.62 is: 88,923.56
Step by Step Solution
- Step 1: Write the proportion equation
115,427.84 : 159,289.79 = 64,437.62 : x - Step 2: Convert to fraction form
115,427.84/159,289.79 = 64,437.62/x - Step 3: Cross multiply
115,427.84x = 159,289.79 × 64,437.62 - Step 4: Simplify right side
115,427.84x = 10,264,253,839.26 - Step 5: Solve for x
x = 10,264,253,839.26/115,427.84 - Step 6: Final answer
x = 88,923.56
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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.