Finding the Fourth Proportional to 53.90, 80.87 and 44.99
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Solution
The fourth proportional to 53.90, 80.87 and 44.99 is: 67.50
Step by Step Solution
- Step 1: Write the proportion equation
53.90 : 80.87 = 44.99 : x - Step 2: Convert to fraction form
53.90/80.87 = 44.99/x - Step 3: Cross multiply
53.90x = 80.87 × 44.99 - Step 4: Simplify right side
53.90x = 3,637.71 - Step 5: Solve for x
x = 3,637.71/53.90 - Step 6: Final answer
x = 67.50
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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.