Finding the Fourth Proportional to 59.93, 89.86 and 30.99
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Solution
The fourth proportional to 59.93, 89.86 and 30.99 is: 46.46
Step by Step Solution
- Step 1: Write the proportion equation
59.93 : 89.86 = 30.99 : x - Step 2: Convert to fraction form
59.93/89.86 = 30.99/x - Step 3: Cross multiply
59.93x = 89.86 × 30.99 - Step 4: Simplify right side
59.93x = 2,784.46 - Step 5: Solve for x
x = 2,784.46/59.93 - Step 6: Final answer
x = 46.46
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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.