Finding the Fourth Proportional to 84,974.73, 127,479.12 and 47,587.98
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Solution
The fourth proportional to 84,974.73, 127,479.12 and 47,587.98 is: 71,391.50
Step by Step Solution
- Step 1: Write the proportion equation
84,974.73 : 127,479.12 = 47,587.98 : x - Step 2: Convert to fraction form
84,974.73/127,479.12 = 47,587.98/x - Step 3: Cross multiply
84,974.73x = 127,479.12 × 47,587.98 - Step 4: Simplify right side
84,974.73x = 6,066,473,812.98 - Step 5: Solve for x
x = 6,066,473,812.98/84,974.73 - Step 6: Final answer
x = 71,391.50
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1.5x scale
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.