Finding the Fourth Proportional to 75,284.79, 103,901.69 and 45,070.09
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Solution
The fourth proportional to 75,284.79, 103,901.69 and 45,070.09 is: 62,201.92
Step by Step Solution
- Step 1: Write the proportion equation
75,284.79 : 103,901.69 = 45,070.09 : x - Step 2: Convert to fraction form
75,284.79/103,901.69 = 45,070.09/x - Step 3: Cross multiply
75,284.79x = 103,901.69 × 45,070.09 - Step 4: Simplify right side
75,284.79x = 4,682,858,294.10 - Step 5: Solve for x
x = 4,682,858,294.10/75,284.79 - Step 6: Final answer
x = 62,201.92
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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.