Finding the Fourth Proportional to 68,936.84, 103,415.76 and 35,184.42
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Solution
The fourth proportional to 68,936.84, 103,415.76 and 35,184.42 is: 52,781.99
Step by Step Solution
- Step 1: Write the proportion equation
68,936.84 : 103,415.76 = 35,184.42 : x - Step 2: Convert to fraction form
68,936.84/103,415.76 = 35,184.42/x - Step 3: Cross multiply
68,936.84x = 103,415.76 × 35,184.42 - Step 4: Simplify right side
68,936.84x = 3,638,623,534.46 - Step 5: Solve for x
x = 3,638,623,534.46/68,936.84 - Step 6: Final answer
x = 52,781.99
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1.5x scale
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.