Finding the Fourth Proportional to 78,787.58, 118,182.40 and 26,197.07
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Solution
The fourth proportional to 78,787.58, 118,182.40 and 26,197.07 is: 39,295.94
Step by Step Solution
- Step 1: Write the proportion equation
78,787.58 : 118,182.40 = 26,197.07 : x - Step 2: Convert to fraction form
78,787.58/118,182.40 = 26,197.07/x - Step 3: Cross multiply
78,787.58x = 118,182.40 × 26,197.07 - Step 4: Simplify right side
78,787.58x = 3,096,032,133.78 - Step 5: Solve for x
x = 3,096,032,133.78/78,787.58 - Step 6: Final answer
x = 39,295.94
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1.5x scale
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.