Finding the Fourth Proportional to 77,357.26, 115,887.66 and 52,354.18
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Solution
The fourth proportional to 77,357.26, 115,887.66 and 52,354.18 is: 78,430.95
Step by Step Solution
- Step 1: Write the proportion equation
77,357.26 : 115,887.66 = 52,354.18 : x - Step 2: Convert to fraction form
77,357.26/115,887.66 = 52,354.18/x - Step 3: Cross multiply
77,357.26x = 115,887.66 × 52,354.18 - Step 4: Simplify right side
77,357.26x = 6,067,203,411.42 - Step 5: Solve for x
x = 6,067,203,411.42/77,357.26 - Step 6: Final answer
x = 78,430.95
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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.