Finding the Fourth Proportional to 86,484.87, 129,716.57 and 23,309.93
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Solution
The fourth proportional to 86,484.87, 129,716.57 and 23,309.93 is: 34,961.99
Step by Step Solution
- Step 1: Write the proportion equation
86,484.87 : 129,716.57 = 23,309.93 : x - Step 2: Convert to fraction form
86,484.87/129,716.57 = 23,309.93/x - Step 3: Cross multiply
86,484.87x = 129,716.57 × 23,309.93 - Step 4: Simplify right side
86,484.87x = 3,023,683,401.41 - Step 5: Solve for x
x = 3,023,683,401.41/86,484.87 - Step 6: Final answer
x = 34,961.99
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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.