Finding the Fourth Proportional to 101,007.44, 139,391.24 and 55,687.08
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Solution
The fourth proportional to 101,007.44, 139,391.24 and 55,687.08 is: 76,848.70
Step by Step Solution
- Step 1: Write the proportion equation
101,007.44 : 139,391.24 = 55,687.08 : x - Step 2: Convert to fraction form
101,007.44/139,391.24 = 55,687.08/x - Step 3: Cross multiply
101,007.44x = 139,391.24 × 55,687.08 - Step 4: Simplify right side
101,007.44x = 7,762,290,854.74 - Step 5: Solve for x
x = 7,762,290,854.74/101,007.44 - Step 6: Final answer
x = 76,848.70
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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.