Finding the Fourth Proportional to 78,901.49, 118,371.38 and 26,315.08
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Solution
The fourth proportional to 78,901.49, 118,371.38 and 26,315.08 is: 39,479.00
Step by Step Solution
- Step 1: Write the proportion equation
78,901.49 : 118,371.38 = 26,315.08 : x - Step 2: Convert to fraction form
78,901.49/118,371.38 = 26,315.08/x - Step 3: Cross multiply
78,901.49x = 118,371.38 × 26,315.08 - Step 4: Simplify right side
78,901.49x = 3,114,951,906.91 - Step 5: Solve for x
x = 3,114,951,906.91/78,901.49 - Step 6: Final answer
x = 39,479.00
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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.