Finding the Fourth Proportional to 75,455.13, 104,137.11 and 45,257.07
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Solution
The fourth proportional to 75,455.13, 104,137.11 and 45,257.07 is: 62,460.17
Step by Step Solution
- Step 1: Write the proportion equation
75,455.13 : 104,137.11 = 45,257.07 : x - Step 2: Convert to fraction form
75,455.13/104,137.11 = 45,257.07/x - Step 3: Cross multiply
75,455.13x = 104,137.11 × 45,257.07 - Step 4: Simplify right side
75,455.13x = 4,712,940,476.87 - Step 5: Solve for x
x = 4,712,940,476.87/75,455.13 - Step 6: Final answer
x = 62,460.17
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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.