Finding the Fourth Proportional to 78,864.98, 118,316.30 and 26,274.92
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Solution
The fourth proportional to 78,864.98, 118,316.30 and 26,274.92 is: 39,418.65
Step by Step Solution
- Step 1: Write the proportion equation
78,864.98 : 118,316.30 = 26,274.92 : x - Step 2: Convert to fraction form
78,864.98/118,316.30 = 26,274.92/x - Step 3: Cross multiply
78,864.98x = 118,316.30 × 26,274.92 - Step 4: Simplify right side
78,864.98x = 3,108,750,594.24 - Step 5: Solve for x
x = 3,108,750,594.24/78,864.98 - Step 6: Final answer
x = 39,418.65
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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.