Finding the Fourth Proportional to 76,792.18, 115,198.01 and 30,038.98
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Solution
The fourth proportional to 76,792.18, 115,198.01 and 30,038.98 is: 45,062.28
Step by Step Solution
- Step 1: Write the proportion equation
76,792.18 : 115,198.01 = 30,038.98 : x - Step 2: Convert to fraction form
76,792.18/115,198.01 = 30,038.98/x - Step 3: Cross multiply
76,792.18x = 115,198.01 × 30,038.98 - Step 4: Simplify right side
76,792.18x = 3,460,430,718.43 - Step 5: Solve for x
x = 3,460,430,718.43/76,792.18 - Step 6: Final answer
x = 45,062.28
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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.