Finding the Fourth Proportional to 69,936.90, 104,936.36 and 36,649.05
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Solution
The fourth proportional to 69,936.90, 104,936.36 and 36,649.05 is: 54,989.82
Step by Step Solution
- Step 1: Write the proportion equation
69,936.90 : 104,936.36 = 36,649.05 : x - Step 2: Convert to fraction form
69,936.90/104,936.36 = 36,649.05/x - Step 3: Cross multiply
69,936.90x = 104,936.36 × 36,649.05 - Step 4: Simplify right side
69,936.90x = 3,845,817,721.21 - Step 5: Solve for x
x = 3,845,817,721.21/69,936.90 - Step 6: Final answer
x = 54,989.82
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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.