Finding the Fourth Proportional to 76,963.99, 106,151.84 and 66,226.85
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Solution
The fourth proportional to 76,963.99, 106,151.84 and 66,226.85 is: 91,342.74
Step by Step Solution
- Step 1: Write the proportion equation
76,963.99 : 106,151.84 = 66,226.85 : x - Step 2: Convert to fraction form
76,963.99/106,151.84 = 66,226.85/x - Step 3: Cross multiply
76,963.99x = 106,151.84 × 66,226.85 - Step 4: Simplify right side
76,963.99x = 7,030,101,454.14 - Step 5: Solve for x
x = 7,030,101,454.14/76,963.99 - Step 6: Final answer
x = 91,342.74
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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.