Finding the Fourth Proportional to 86,206.93, 129,369.86 and 30,047.51
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Solution
The fourth proportional to 86,206.93, 129,369.86 and 30,047.51 is: 45,091.99
Step by Step Solution
- Step 1: Write the proportion equation
86,206.93 : 129,369.86 = 30,047.51 : x - Step 2: Convert to fraction form
86,206.93/129,369.86 = 30,047.51/x - Step 3: Cross multiply
86,206.93x = 129,369.86 × 30,047.51 - Step 4: Simplify right side
86,206.93x = 3,887,242,162.05 - Step 5: Solve for x
x = 3,887,242,162.05/86,206.93 - Step 6: Final answer
x = 45,091.99
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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.