Finding the Fourth Proportional to 76,941.63, 115,411.25 and 39,480.08
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Solution
The fourth proportional to 76,941.63, 115,411.25 and 39,480.08 is: 59,219.50
Step by Step Solution
- Step 1: Write the proportion equation
76,941.63 : 115,411.25 = 39,480.08 : x - Step 2: Convert to fraction form
76,941.63/115,411.25 = 39,480.08/x - Step 3: Cross multiply
76,941.63x = 115,411.25 × 39,480.08 - Step 4: Simplify right side
76,941.63x = 4,556,444,904.54 - Step 5: Solve for x
x = 4,556,444,904.54/76,941.63 - Step 6: Final answer
x = 59,219.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.