Finding the Fourth Proportional to 53.68, 80.07 and 45.98
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Solution
The fourth proportional to 53.68, 80.07 and 45.98 is: 68.59
Step by Step Solution
- Step 1: Write the proportion equation
53.68 : 80.07 = 45.98 : x - Step 2: Convert to fraction form
53.68/80.07 = 45.98/x - Step 3: Cross multiply
53.68x = 80.07 × 45.98 - Step 4: Simplify right side
53.68x = 3,681.82 - Step 5: Solve for x
x = 3,681.82/53.68 - Step 6: Final answer
x = 68.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.