Finding the Fourth Proportional to 75,305.40, 112,921.62 and 22,705.08
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Solution
The fourth proportional to 75,305.40, 112,921.62 and 22,705.08 is: 34,046.62
Step by Step Solution
- Step 1: Write the proportion equation
75,305.40 : 112,921.62 = 22,705.08 : x - Step 2: Convert to fraction form
75,305.40/112,921.62 = 22,705.08/x - Step 3: Cross multiply
75,305.40x = 112,921.62 × 22,705.08 - Step 4: Simplify right side
75,305.40x = 2,563,894,415.83 - Step 5: Solve for x
x = 2,563,894,415.83/75,305.40 - Step 6: Final answer
x = 34,046.62
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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.