Finding the Fourth Proportional to 75,247.04, 103,854.14 and 57,157.67
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Solution
The fourth proportional to 75,247.04, 103,854.14 and 57,157.67 is: 78,887.62
Step by Step Solution
- Step 1: Write the proportion equation
75,247.04 : 103,854.14 = 57,157.67 : x - Step 2: Convert to fraction form
75,247.04/103,854.14 = 57,157.67/x - Step 3: Cross multiply
75,247.04x = 103,854.14 × 57,157.67 - Step 4: Simplify right side
75,247.04x = 5,936,059,857.19 - Step 5: Solve for x
x = 5,936,059,857.19/75,247.04 - Step 6: Final answer
x = 78,887.62
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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.