Finding the Fourth Proportional to 78,114.26, 107,787.75 and 44,124.63
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Solution
The fourth proportional to 78,114.26, 107,787.75 and 44,124.63 is: 60,886.38
Step by Step Solution
- Step 1: Write the proportion equation
78,114.26 : 107,787.75 = 44,124.63 : x - Step 2: Convert to fraction form
78,114.26/107,787.75 = 44,124.63/x - Step 3: Cross multiply
78,114.26x = 107,787.75 × 44,124.63 - Step 4: Simplify right side
78,114.26x = 4,756,094,587.28 - Step 5: Solve for x
x = 4,756,094,587.28/78,114.26 - Step 6: Final answer
x = 60,886.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.