Finding the Fourth Proportional to 77,357.76, 115,888.41 and 52,354.68
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Solution
The fourth proportional to 77,357.76, 115,888.41 and 52,354.68 is: 78,431.70
Step by Step Solution
- Step 1: Write the proportion equation
77,357.76 : 115,888.41 = 52,354.68 : x - Step 2: Convert to fraction form
77,357.76/115,888.41 = 52,354.68/x - Step 3: Cross multiply
77,357.76x = 115,888.41 × 52,354.68 - Step 4: Simplify right side
77,357.76x = 6,067,300,621.26 - Step 5: Solve for x
x = 6,067,300,621.26/77,357.76 - Step 6: Final answer
x = 78,431.70
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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.