Finding the Fourth Proportional to 84,424.08, 117,038.01 and 79,929.84
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Solution
The fourth proportional to 84,424.08, 117,038.01 and 79,929.84 is: 110,807.60
Step by Step Solution
- Step 1: Write the proportion equation
84,424.08 : 117,038.01 = 79,929.84 : x - Step 2: Convert to fraction form
84,424.08/117,038.01 = 79,929.84/x - Step 3: Cross multiply
84,424.08x = 117,038.01 × 79,929.84 - Step 4: Simplify right side
84,424.08x = 9,354,829,413.22 - Step 5: Solve for x
x = 9,354,829,413.22/84,424.08 - Step 6: Final answer
x = 110,807.60
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.