Finding the Fourth Proportional to 48.61, 72.73 and 46.99
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Solution
The fourth proportional to 48.61, 72.73 and 46.99 is: 70.31
Step by Step Solution
- Step 1: Write the proportion equation
48.61 : 72.73 = 46.99 : x - Step 2: Convert to fraction form
48.61/72.73 = 46.99/x - Step 3: Cross multiply
48.61x = 72.73 × 46.99 - Step 4: Simplify right side
48.61x = 3,417.58 - Step 5: Solve for x
x = 3,417.58/48.61 - Step 6: Final answer
x = 70.31
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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.