Finding the Fourth Proportional to 74,780.05, 112,170.12 and 22,189.07
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Solution
The fourth proportional to 74,780.05, 112,170.12 and 22,189.07 is: 33,283.61
Step by Step Solution
- Step 1: Write the proportion equation
74,780.05 : 112,170.12 = 22,189.07 : x - Step 2: Convert to fraction form
74,780.05/112,170.12 = 22,189.07/x - Step 3: Cross multiply
74,780.05x = 112,170.12 × 22,189.07 - Step 4: Simplify right side
74,780.05x = 2,488,949,972.79 - Step 5: Solve for x
x = 2,488,949,972.79/74,780.05 - Step 6: Final answer
x = 33,283.61
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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.