Finding the Fourth Proportional to 86,326.08, 129,490.80 and 23,995.68
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Solution
The fourth proportional to 86,326.08, 129,490.80 and 23,995.68 is: 35,993.99
Step by Step Solution
- Step 1: Write the proportion equation
86,326.08 : 129,490.80 = 23,995.68 : x - Step 2: Convert to fraction form
86,326.08/129,490.80 = 23,995.68/x - Step 3: Cross multiply
86,326.08x = 129,490.80 × 23,995.68 - Step 4: Simplify right side
86,326.08x = 3,107,219,799.74 - Step 5: Solve for x
x = 3,107,219,799.74/86,326.08 - Step 6: Final answer
x = 35,993.99
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Double scale
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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.