Finding the Fourth Proportional to 101,794.10, 140,476.21 and 56,472.98
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Solution
The fourth proportional to 101,794.10, 140,476.21 and 56,472.98 is: 77,932.90
Step by Step Solution
- Step 1: Write the proportion equation
101,794.10 : 140,476.21 = 56,472.98 : x - Step 2: Convert to fraction form
101,794.10/140,476.21 = 56,472.98/x - Step 3: Cross multiply
101,794.10x = 140,476.21 × 56,472.98 - Step 4: Simplify right side
101,794.10x = 7,933,109,354.24 - Step 5: Solve for x
x = 7,933,109,354.24/101,794.10 - Step 6: Final answer
x = 77,932.90
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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.