Finding the Fourth Proportional to 59.47, 89.08 and 47.99
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Solution
The fourth proportional to 59.47, 89.08 and 47.99 is: 71.89
Step by Step Solution
- Step 1: Write the proportion equation
59.47 : 89.08 = 47.99 : x - Step 2: Convert to fraction form
59.47/89.08 = 47.99/x - Step 3: Cross multiply
59.47x = 89.08 × 47.99 - Step 4: Simplify right side
59.47x = 4,275.05 - Step 5: Solve for x
x = 4,275.05/59.47 - Step 6: Final answer
x = 71.89
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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.