Finding the Fourth Proportional to 77,217.57, 106,564.41 and 46,998.09
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Solution
The fourth proportional to 77,217.57, 106,564.41 and 46,998.09 is: 64,859.90
Step by Step Solution
- Step 1: Write the proportion equation
77,217.57 : 106,564.41 = 46,998.09 : x - Step 2: Convert to fraction form
77,217.57/106,564.41 = 46,998.09/x - Step 3: Cross multiply
77,217.57x = 106,564.41 × 46,998.09 - Step 4: Simplify right side
77,217.57x = 5,008,323,731.98 - Step 5: Solve for x
x = 5,008,323,731.98/77,217.57 - Step 6: Final answer
x = 64,859.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.