Finding the Fourth Proportional to 75,298.86, 103,913.81 and 41,309.09
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Solution
The fourth proportional to 75,298.86, 103,913.81 and 41,309.09 is: 57,007.30
Step by Step Solution
- Step 1: Write the proportion equation
75,298.86 : 103,913.81 = 41,309.09 : x - Step 2: Convert to fraction form
75,298.86/103,913.81 = 41,309.09/x - Step 3: Cross multiply
75,298.86x = 103,913.81 × 41,309.09 - Step 4: Simplify right side
75,298.86x = 4,292,584,513.24 - Step 5: Solve for x
x = 4,292,584,513.24/75,298.86 - Step 6: Final answer
x = 57,007.30
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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.