Finding the Fourth Proportional to 86,149.08, 129,091.74 and 57,964.74
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Solution
The fourth proportional to 86,149.08, 129,091.74 and 57,964.74 is: 86,858.38
Step by Step Solution
- Step 1: Write the proportion equation
86,149.08 : 129,091.74 = 57,964.74 : x - Step 2: Convert to fraction form
86,149.08/129,091.74 = 57,964.74/x - Step 3: Cross multiply
86,149.08x = 129,091.74 × 57,964.74 - Step 4: Simplify right side
86,149.08x = 7,482,769,145.25 - Step 5: Solve for x
x = 7,482,769,145.25/86,149.08 - Step 6: Final answer
x = 86,858.38
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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.