Finding the Fourth Proportional to 92,899.45, 128,201.91 and 50,457.99
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Solution
The fourth proportional to 92,899.45, 128,201.91 and 50,457.99 is: 69,632.39
Step by Step Solution
- Step 1: Write the proportion equation
92,899.45 : 128,201.91 = 50,457.99 : x - Step 2: Convert to fraction form
92,899.45/128,201.91 = 50,457.99/x - Step 3: Cross multiply
92,899.45x = 128,201.91 × 50,457.99 - Step 4: Simplify right side
92,899.45x = 6,468,810,692.76 - Step 5: Solve for x
x = 6,468,810,692.76/92,899.45 - Step 6: Final answer
x = 69,632.39
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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.