Finding the Fourth Proportional to 75,862.84, 104,690.64 and 42,328.84
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Solution
The fourth proportional to 75,862.84, 104,690.64 and 42,328.84 is: 58,413.76
Step by Step Solution
- Step 1: Write the proportion equation
75,862.84 : 104,690.64 = 42,328.84 : x - Step 2: Convert to fraction form
75,862.84/104,690.64 = 42,328.84/x - Step 3: Cross multiply
75,862.84x = 104,690.64 × 42,328.84 - Step 4: Simplify right side
75,862.84x = 4,431,433,350.06 - Step 5: Solve for x
x = 4,431,433,350.06/75,862.84 - Step 6: Final answer
x = 58,413.76
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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.