Finding the Fourth Proportional to 68,938.84, 103,418.76 and 35,186.42
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Solution
The fourth proportional to 68,938.84, 103,418.76 and 35,186.42 is: 52,784.99
Step by Step Solution
- Step 1: Write the proportion equation
68,938.84 : 103,418.76 = 35,186.42 : x - Step 2: Convert to fraction form
68,938.84/103,418.76 = 35,186.42/x - Step 3: Cross multiply
68,938.84x = 103,418.76 × 35,186.42 - Step 4: Simplify right side
68,938.84x = 3,638,935,925.24 - Step 5: Solve for x
x = 3,638,935,925.24/68,938.84 - Step 6: Final answer
x = 52,784.99
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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.