Finding the Fourth Proportional to 68.84, 102.99 and 43.02
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Solution
The fourth proportional to 68.84, 102.99 and 43.02 is: 64.37
Step by Step Solution
- Step 1: Write the proportion equation
68.84 : 102.99 = 43.02 : x - Step 2: Convert to fraction form
68.84/102.99 = 43.02/x - Step 3: Cross multiply
68.84x = 102.99 × 43.02 - Step 4: Simplify right side
68.84x = 4,430.63 - Step 5: Solve for x
x = 4,430.63/68.84 - Step 6: Final answer
x = 64.37
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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.