Finding the Fourth Proportional to 83,112.08, 114,690.12 and 51,283.28
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Solution
The fourth proportional to 83,112.08, 114,690.12 and 51,283.28 is: 70,768.12
Step by Step Solution
- Step 1: Write the proportion equation
83,112.08 : 114,690.12 = 51,283.28 : x - Step 2: Convert to fraction form
83,112.08/114,690.12 = 51,283.28/x - Step 3: Cross multiply
83,112.08x = 114,690.12 × 51,283.28 - Step 4: Simplify right side
83,112.08x = 5,881,685,537.19 - Step 5: Solve for x
x = 5,881,685,537.19/83,112.08 - Step 6: Final answer
x = 70,768.12
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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.