Finding the Fourth Proportional to 75,122.14, 103,673.55 and 43,293.09
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Solution
The fourth proportional to 75,122.14, 103,673.55 and 43,293.09 is: 59,747.34
Step by Step Solution
- Step 1: Write the proportion equation
75,122.14 : 103,673.55 = 43,293.09 : x - Step 2: Convert to fraction form
75,122.14/103,673.55 = 43,293.09/x - Step 3: Cross multiply
75,122.14x = 103,673.55 × 43,293.09 - Step 4: Simplify right side
75,122.14x = 4,488,348,330.77 - Step 5: Solve for x
x = 4,488,348,330.77/75,122.14 - Step 6: Final answer
x = 59,747.34
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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.