Finding the Fourth Proportional to 83,974.59, 115,876.36 and 51,704.09
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Solution
The fourth proportional to 83,974.59, 115,876.36 and 51,704.09 is: 71,346.36
Step by Step Solution
- Step 1: Write the proportion equation
83,974.59 : 115,876.36 = 51,704.09 : x - Step 2: Convert to fraction form
83,974.59/115,876.36 = 51,704.09/x - Step 3: Cross multiply
83,974.59x = 115,876.36 × 51,704.09 - Step 4: Simplify right side
83,974.59x = 5,991,281,746.31 - Step 5: Solve for x
x = 5,991,281,746.31/83,974.59 - Step 6: Final answer
x = 71,346.36
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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.