Finding the Fourth Proportional to 77,356.26, 115,886.16 and 52,353.18
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Solution
The fourth proportional to 77,356.26, 115,886.16 and 52,353.18 is: 78,429.45
Step by Step Solution
- Step 1: Write the proportion equation
77,356.26 : 115,886.16 = 52,353.18 : x - Step 2: Convert to fraction form
77,356.26/115,886.16 = 52,353.18/x - Step 3: Cross multiply
77,356.26x = 115,886.16 × 52,353.18 - Step 4: Simplify right side
77,356.26x = 6,067,008,993.99 - Step 5: Solve for x
x = 6,067,008,993.99/77,356.26 - Step 6: Final answer
x = 78,429.45
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1.5x scale
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.