Finding the Fourth Proportional to 84,639.13, 126,966.38 and 22,309.63
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Solution
The fourth proportional to 84,639.13, 126,966.38 and 22,309.63 is: 33,466.47
Step by Step Solution
- Step 1: Write the proportion equation
84,639.13 : 126,966.38 = 22,309.63 : x - Step 2: Convert to fraction form
84,639.13/126,966.38 = 22,309.63/x - Step 3: Cross multiply
84,639.13x = 126,966.38 × 22,309.63 - Step 4: Simplify right side
84,639.13x = 2,832,572,960.24 - Step 5: Solve for x
x = 2,832,572,960.24/84,639.13 - Step 6: Final answer
x = 33,466.47
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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.