Finding the Fourth Proportional to 78,284.16, 117,564.34 and 58,299.08
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Solution
The fourth proportional to 78,284.16, 117,564.34 and 58,299.08 is: 87,551.46
Step by Step Solution
- Step 1: Write the proportion equation
78,284.16 : 117,564.34 = 58,299.08 : x - Step 2: Convert to fraction form
78,284.16/117,564.34 = 58,299.08/x - Step 3: Cross multiply
78,284.16x = 117,564.34 × 58,299.08 - Step 4: Simplify right side
78,284.16x = 6,853,892,788.73 - Step 5: Solve for x
x = 6,853,892,788.73/78,284.16 - Step 6: Final answer
x = 87,551.46
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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.