Finding the Fourth Proportional to 86,178.08, 129,266.16 and 33,624.48
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Solution
The fourth proportional to 86,178.08, 129,266.16 and 33,624.48 is: 50,436.35
Step by Step Solution
- Step 1: Write the proportion equation
86,178.08 : 129,266.16 = 33,624.48 : x - Step 2: Convert to fraction form
86,178.08/129,266.16 = 33,624.48/x - Step 3: Cross multiply
86,178.08x = 129,266.16 × 33,624.48 - Step 4: Simplify right side
86,178.08x = 4,346,507,411.60 - Step 5: Solve for x
x = 4,346,507,411.60/86,178.08 - Step 6: Final answer
x = 50,436.35
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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.