Finding the Fourth Proportional to 77,393.99, 106,758.34 and 48,668.09
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Solution
The fourth proportional to 77,393.99, 106,758.34 and 48,668.09 is: 67,133.43
Step by Step Solution
- Step 1: Write the proportion equation
77,393.99 : 106,758.34 = 48,668.09 : x - Step 2: Convert to fraction form
77,393.99/106,758.34 = 48,668.09/x - Step 3: Cross multiply
77,393.99x = 106,758.34 × 48,668.09 - Step 4: Simplify right side
77,393.99x = 5,195,723,965.58 - Step 5: Solve for x
x = 5,195,723,965.58/77,393.99 - Step 6: Final answer
x = 67,133.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.