Finding the Fourth Proportional to 59.14, 81.43 and 53.74
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Solution
The fourth proportional to 59.14, 81.43 and 53.74 is: 73.99
Step by Step Solution
- Step 1: Write the proportion equation
59.14 : 81.43 = 53.74 : x - Step 2: Convert to fraction form
59.14/81.43 = 53.74/x - Step 3: Cross multiply
59.14x = 81.43 × 53.74 - Step 4: Simplify right side
59.14x = 4,376.05 - Step 5: Solve for x
x = 4,376.05/59.14 - Step 6: Final answer
x = 73.99
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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.