Finding the Fourth Proportional to 86,075.10, 129,112.74 and 26,911.08
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Solution
The fourth proportional to 86,075.10, 129,112.74 and 26,911.08 is: 40,366.65
Step by Step Solution
- Step 1: Write the proportion equation
86,075.10 : 129,112.74 = 26,911.08 : x - Step 2: Convert to fraction form
86,075.10/129,112.74 = 26,911.08/x - Step 3: Cross multiply
86,075.10x = 129,112.74 × 26,911.08 - Step 4: Simplify right side
86,075.10x = 3,474,563,275.16 - Step 5: Solve for x
x = 3,474,563,275.16/86,075.10 - Step 6: Final answer
x = 40,366.65
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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.