Finding the Fourth Proportional to 86,903.48, 130,368.39 and 30,744.23
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Solution
The fourth proportional to 86,903.48, 130,368.39 and 30,744.23 is: 46,120.99
Step by Step Solution
- Step 1: Write the proportion equation
86,903.48 : 130,368.39 = 30,744.23 : x - Step 2: Convert to fraction form
86,903.48/130,368.39 = 30,744.23/x - Step 3: Cross multiply
86,903.48x = 130,368.39 × 30,744.23 - Step 4: Simplify right side
86,903.48x = 4,008,074,999.76 - Step 5: Solve for x
x = 4,008,074,999.76/86,903.48 - Step 6: Final answer
x = 46,120.99
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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.