Finding the Fourth Proportional to 83,414.16, 115,135.68 and 47,623.68
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Solution
The fourth proportional to 83,414.16, 115,135.68 and 47,623.68 is: 65,734.46
Step by Step Solution
- Step 1: Write the proportion equation
83,414.16 : 115,135.68 = 47,623.68 : x - Step 2: Convert to fraction form
83,414.16/115,135.68 = 47,623.68/x - Step 3: Cross multiply
83,414.16x = 115,135.68 × 47,623.68 - Step 4: Simplify right side
83,414.16x = 5,483,184,780.90 - Step 5: Solve for x
x = 5,483,184,780.90/83,414.16 - Step 6: Final answer
x = 65,734.46
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1.5x scale
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.