Finding the Fourth Proportional to 74,798.13, 112,215.68 and 22,207.57
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Solution
The fourth proportional to 74,798.13, 112,215.68 and 22,207.57 is: 33,316.84
Step by Step Solution
- Step 1: Write the proportion equation
74,798.13 : 112,215.68 = 22,207.57 : x - Step 2: Convert to fraction form
74,798.13/112,215.68 = 22,207.57/x - Step 3: Cross multiply
74,798.13x = 112,215.68 × 22,207.57 - Step 4: Simplify right side
74,798.13x = 2,492,037,260.40 - Step 5: Solve for x
x = 2,492,037,260.40/74,798.13 - Step 6: Final answer
x = 33,316.84
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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.