Finding the Fourth Proportional to 88,578.90, 122,163.68 and 74,848.50
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Solution
The fourth proportional to 88,578.90, 122,163.68 and 74,848.50 is: 103,227.38
Step by Step Solution
- Step 1: Write the proportion equation
88,578.90 : 122,163.68 = 74,848.50 : x - Step 2: Convert to fraction form
88,578.90/122,163.68 = 74,848.50/x - Step 3: Cross multiply
88,578.90x = 122,163.68 × 74,848.50 - Step 4: Simplify right side
88,578.90x = 9,143,767,828.24 - Step 5: Solve for x
x = 9,143,767,828.24/88,578.90 - Step 6: Final answer
x = 103,227.38
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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.