Finding the Fourth Proportional to 86,410.29, 129,633.08 and 48,987.08
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Solution
The fourth proportional to 86,410.29, 129,633.08 and 48,987.08 is: 73,490.62
Step by Step Solution
- Step 1: Write the proportion equation
86,410.29 : 129,633.08 = 48,987.08 : x - Step 2: Convert to fraction form
86,410.29/129,633.08 = 48,987.08/x - Step 3: Cross multiply
86,410.29x = 129,633.08 × 48,987.08 - Step 4: Simplify right side
86,410.29x = 6,350,345,653.63 - Step 5: Solve for x
x = 6,350,345,653.63/86,410.29 - Step 6: Final answer
x = 73,490.62
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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.