Finding the Fourth Proportional to 88,273.70, 121,845.60 and 56,442.74
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Solution
The fourth proportional to 88,273.70, 121,845.60 and 56,442.74 is: 77,908.82
Step by Step Solution
- Step 1: Write the proportion equation
88,273.70 : 121,845.60 = 56,442.74 : x - Step 2: Convert to fraction form
88,273.70/121,845.60 = 56,442.74/x - Step 3: Cross multiply
88,273.70x = 121,845.60 × 56,442.74 - Step 4: Simplify right side
88,273.70x = 6,877,299,520.94 - Step 5: Solve for x
x = 6,877,299,520.94/88,273.70 - Step 6: Final answer
x = 77,908.82
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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.