Finding the Fourth Proportional to 96,957.60, 133,867.76 and 74,256.48
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Solution
The fourth proportional to 96,957.60, 133,867.76 and 74,256.48 is: 102,524.70
Step by Step Solution
- Step 1: Write the proportion equation
96,957.60 : 133,867.76 = 74,256.48 : x - Step 2: Convert to fraction form
96,957.60/133,867.76 = 74,256.48/x - Step 3: Cross multiply
96,957.60x = 133,867.76 × 74,256.48 - Step 4: Simplify right side
96,957.60x = 9,940,548,643.08 - Step 5: Solve for x
x = 9,940,548,643.08/96,957.60 - Step 6: Final answer
x = 102,524.70
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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.