Finding the Fourth Proportional to 85,868.00, 118,457.03 and 57,200.99
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Solution
The fourth proportional to 85,868.00, 118,457.03 and 57,200.99 is: 78,910.18
Step by Step Solution
- Step 1: Write the proportion equation
85,868.00 : 118,457.03 = 57,200.99 : x - Step 2: Convert to fraction form
85,868.00/118,457.03 = 57,200.99/x - Step 3: Cross multiply
85,868.00x = 118,457.03 × 57,200.99 - Step 4: Simplify right side
85,868.00x = 6,775,858,939.18 - Step 5: Solve for x
x = 6,775,858,939.18/85,868.00 - Step 6: Final answer
x = 78,910.18
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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.