Finding the Fourth Proportional to 67,840.42, 101,765.50 and 17,920.02
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Solution
The fourth proportional to 67,840.42, 101,765.50 and 17,920.02 is: 26,881.32
Step by Step Solution
- Step 1: Write the proportion equation
67,840.42 : 101,765.50 = 17,920.02 : x - Step 2: Convert to fraction form
67,840.42/101,765.50 = 17,920.02/x - Step 3: Cross multiply
67,840.42x = 101,765.50 × 17,920.02 - Step 4: Simplify right side
67,840.42x = 1,823,639,795.31 - Step 5: Solve for x
x = 1,823,639,795.31/67,840.42 - Step 6: Final answer
x = 26,881.32
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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.