Finding the Fourth Proportional to 90,935.12, 125,490.84 and 53,202.08
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Solution
The fourth proportional to 90,935.12, 125,490.84 and 53,202.08 is: 73,419.09
Step by Step Solution
- Step 1: Write the proportion equation
90,935.12 : 125,490.84 = 53,202.08 : x - Step 2: Convert to fraction form
90,935.12/125,490.84 = 53,202.08/x - Step 3: Cross multiply
90,935.12x = 125,490.84 × 53,202.08 - Step 4: Simplify right side
90,935.12x = 6,676,373,708.95 - Step 5: Solve for x
x = 6,676,373,708.95/90,935.12 - Step 6: Final answer
x = 73,419.09
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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.