Finding the Fourth Proportional to 84,234.99, 126,351.98 and 21,054.80
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Solution
The fourth proportional to 84,234.99, 126,351.98 and 21,054.80 is: 31,582.07
Step by Step Solution
- Step 1: Write the proportion equation
84,234.99 : 126,351.98 = 21,054.80 : x - Step 2: Convert to fraction form
84,234.99/126,351.98 = 21,054.80/x - Step 3: Cross multiply
84,234.99x = 126,351.98 × 21,054.80 - Step 4: Simplify right side
84,234.99x = 2,660,314,931.47 - Step 5: Solve for x
x = 2,660,314,931.47/84,234.99 - Step 6: Final answer
x = 31,582.07
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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.