Finding the Fourth Proportional to 101,745.77, 140,407.68 and 56,423.84
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Solution
The fourth proportional to 101,745.77, 140,407.68 and 56,423.84 is: 77,864.08
Step by Step Solution
- Step 1: Write the proportion equation
101,745.77 : 140,407.68 = 56,423.84 : x - Step 2: Convert to fraction form
101,745.77/140,407.68 = 56,423.84/x - Step 3: Cross multiply
101,745.77x = 140,407.68 × 56,423.84 - Step 4: Simplify right side
101,745.77x = 7,922,340,453.05 - Step 5: Solve for x
x = 7,922,340,453.05/101,745.77 - Step 6: Final answer
x = 77,864.08
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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.