Finding the Fourth Proportional to 67,930.08, 101,890.36 and 18,009.12
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Solution
The fourth proportional to 67,930.08, 101,890.36 and 18,009.12 is: 27,012.42
Step by Step Solution
- Step 1: Write the proportion equation
67,930.08 : 101,890.36 = 18,009.12 : x - Step 2: Convert to fraction form
67,930.08/101,890.36 = 18,009.12/x - Step 3: Cross multiply
67,930.08x = 101,890.36 × 18,009.12 - Step 4: Simplify right side
67,930.08x = 1,834,955,720.08 - Step 5: Solve for x
x = 1,834,955,720.08/67,930.08 - Step 6: Final answer
x = 27,012.42
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1.5x scale
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.